Home / 72,307.28-99,974.45-63,329.04

Finding the Fourth Proportional to 72,307.28, 99,974.45 and 63,329.04

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Solution

The fourth proportional to 72,307.28, 99,974.45 and 63,329.04 is: 87,560.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,307.28 : 99,974.45 = 63,329.04 : x
  2. Step 2: Convert to fraction form
    72,307.28/99,974.45 = 63,329.04/x
  3. Step 3: Cross multiply
    72,307.28x = 99,974.45 × 63,329.04
  4. Step 4: Simplify right side
    72,307.28x = 6,331,286,101.35
  5. Step 5: Solve for x
    x = 6,331,286,101.35/72,307.28
  6. Step 6: Final answer
    x = 87,560.84

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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.