Home / 54,302.12-74,889.06-39,190.76

Finding the Fourth Proportional to 54,302.12, 74,889.06 and 39,190.76

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Solution

The fourth proportional to 54,302.12, 74,889.06 and 39,190.76 is: 54,048.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,302.12 : 74,889.06 = 39,190.76 : x
  2. Step 2: Convert to fraction form
    54,302.12/74,889.06 = 39,190.76/x
  3. Step 3: Cross multiply
    54,302.12x = 74,889.06 × 39,190.76
  4. Step 4: Simplify right side
    54,302.12x = 2,934,959,177.09
  5. Step 5: Solve for x
    x = 2,934,959,177.09/54,302.12
  6. Step 6: Final answer
    x = 54,048.70

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.