Home / 72,931.38-99,988.95-71,602.85

Finding the Fourth Proportional to 72,931.38, 99,988.95 and 71,602.85

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Solution

The fourth proportional to 72,931.38, 99,988.95 and 71,602.85 is: 98,167.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,931.38 : 99,988.95 = 71,602.85 : x
  2. Step 2: Convert to fraction form
    72,931.38/99,988.95 = 71,602.85/x
  3. Step 3: Cross multiply
    72,931.38x = 99,988.95 × 71,602.85
  4. Step 4: Simplify right side
    72,931.38x = 7,159,493,288.56
  5. Step 5: Solve for x
    x = 7,159,493,288.56/72,931.38
  6. Step 6: Final answer
    x = 98,167.53

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.