Home / 90,387.17-124,737.50-54,570.19

Finding the Fourth Proportional to 90,387.17, 124,737.50 and 54,570.19

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Solution

The fourth proportional to 90,387.17, 124,737.50 and 54,570.19 is: 75,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,387.17 : 124,737.50 = 54,570.19 : x
  2. Step 2: Convert to fraction form
    90,387.17/124,737.50 = 54,570.19/x
  3. Step 3: Cross multiply
    90,387.17x = 124,737.50 × 54,570.19
  4. Step 4: Simplify right side
    90,387.17x = 6,806,949,075.13
  5. Step 5: Solve for x
    x = 6,806,949,075.13/90,387.17
  6. Step 6: Final answer
    x = 75,308.80

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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.