Home / 52,781.28-72,838.08-28,908.96

Finding the Fourth Proportional to 52,781.28, 72,838.08 and 28,908.96

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Solution

The fourth proportional to 52,781.28, 72,838.08 and 28,908.96 is: 39,894.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,781.28 : 72,838.08 = 28,908.96 : x
  2. Step 2: Convert to fraction form
    52,781.28/72,838.08 = 28,908.96/x
  3. Step 3: Cross multiply
    52,781.28x = 72,838.08 × 28,908.96
  4. Step 4: Simplify right side
    52,781.28x = 2,105,673,141.20
  5. Step 5: Solve for x
    x = 2,105,673,141.20/52,781.28
  6. Step 6: Final answer
    x = 39,894.32

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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.