Home / 77,864.16-107,367.12-52,669.92

Finding the Fourth Proportional to 77,864.16, 107,367.12 and 52,669.92

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Solution

The fourth proportional to 77,864.16, 107,367.12 and 52,669.92 is: 72,626.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,864.16 : 107,367.12 = 52,669.92 : x
  2. Step 2: Convert to fraction form
    77,864.16/107,367.12 = 52,669.92/x
  3. Step 3: Cross multiply
    77,864.16x = 107,367.12 × 52,669.92
  4. Step 4: Simplify right side
    77,864.16x = 5,655,017,621.03
  5. Step 5: Solve for x
    x = 5,655,017,621.03/77,864.16
  6. Step 6: Final answer
    x = 72,626.71

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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.