Home / 53,974.76-80,985.56-28,985.68

Finding the Fourth Proportional to 53,974.76, 80,985.56 and 28,985.68

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Solution

The fourth proportional to 53,974.76, 80,985.56 and 28,985.68 is: 43,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,974.76 : 80,985.56 = 28,985.68 : x
  2. Step 2: Convert to fraction form
    53,974.76/80,985.56 = 28,985.68/x
  3. Step 3: Cross multiply
    53,974.76x = 80,985.56 × 28,985.68
  4. Step 4: Simplify right side
    53,974.76x = 2,347,421,526.78
  5. Step 5: Solve for x
    x = 2,347,421,526.78/53,974.76
  6. Step 6: Final answer
    x = 43,491.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.