Home / 75,829.25-112,965.49-72,417.53

Finding the Fourth Proportional to 75,829.25, 112,965.49 and 72,417.53

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Solution

The fourth proportional to 75,829.25, 112,965.49 and 72,417.53 is: 107,882.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,829.25 : 112,965.49 = 72,417.53 : x
  2. Step 2: Convert to fraction form
    75,829.25/112,965.49 = 72,417.53/x
  3. Step 3: Cross multiply
    75,829.25x = 112,965.49 × 72,417.53
  4. Step 4: Simplify right side
    75,829.25x = 8,180,681,761.04
  5. Step 5: Solve for x
    x = 8,180,681,761.04/75,829.25
  6. Step 6: Final answer
    x = 107,882.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.