Home / 54,301.18-74,934.68-30,427.78

Finding the Fourth Proportional to 54,301.18, 74,934.68 and 30,427.78

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Solution

The fourth proportional to 54,301.18, 74,934.68 and 30,427.78 is: 41,989.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,301.18 : 74,934.68 = 30,427.78 : x
  2. Step 2: Convert to fraction form
    54,301.18/74,934.68 = 30,427.78/x
  3. Step 3: Cross multiply
    54,301.18x = 74,934.68 × 30,427.78
  4. Step 4: Simplify right side
    54,301.18x = 2,280,095,957.41
  5. Step 5: Solve for x
    x = 2,280,095,957.41/54,301.18
  6. Step 6: Final answer
    x = 41,989.80

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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.