Home / 79,632.16-109,864.08-52,787.68

Finding the Fourth Proportional to 79,632.16, 109,864.08 and 52,787.68

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Solution

The fourth proportional to 79,632.16, 109,864.08 and 52,787.68 is: 72,828.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,632.16 : 109,864.08 = 52,787.68 : x
  2. Step 2: Convert to fraction form
    79,632.16/109,864.08 = 52,787.68/x
  3. Step 3: Cross multiply
    79,632.16x = 109,864.08 × 52,787.68
  4. Step 4: Simplify right side
    79,632.16x = 5,799,469,898.53
  5. Step 5: Solve for x
    x = 5,799,469,898.53/79,632.16
  6. Step 6: Final answer
    x = 72,828.24

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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.