Home / 72,156.90-99,512.04-45,301.92

Finding the Fourth Proportional to 72,156.90, 99,512.04 and 45,301.92

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Solution

The fourth proportional to 72,156.90, 99,512.04 and 45,301.92 is: 62,476.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,156.90 : 99,512.04 = 45,301.92 : x
  2. Step 2: Convert to fraction form
    72,156.90/99,512.04 = 45,301.92/x
  3. Step 3: Cross multiply
    72,156.90x = 99,512.04 × 45,301.92
  4. Step 4: Simplify right side
    72,156.90x = 4,508,086,475.12
  5. Step 5: Solve for x
    x = 4,508,086,475.12/72,156.90
  6. Step 6: Final answer
    x = 62,476.17

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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.