Home / 53,680.48-74,148.78-40,855.76

Finding the Fourth Proportional to 53,680.48, 74,148.78 and 40,855.76

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Solution

The fourth proportional to 53,680.48, 74,148.78 and 40,855.76 is: 56,434.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,680.48 : 74,148.78 = 40,855.76 : x
  2. Step 2: Convert to fraction form
    53,680.48/74,148.78 = 40,855.76/x
  3. Step 3: Cross multiply
    53,680.48x = 74,148.78 × 40,855.76
  4. Step 4: Simplify right side
    53,680.48x = 3,029,404,759.97
  5. Step 5: Solve for x
    x = 3,029,404,759.97/53,680.48
  6. Step 6: Final answer
    x = 56,434.01

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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.