Home / 83,681.17-125,521.80-52,538.29

Finding the Fourth Proportional to 83,681.17, 125,521.80 and 52,538.29

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Solution

The fourth proportional to 83,681.17, 125,521.80 and 52,538.29 is: 78,807.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,681.17 : 125,521.80 = 52,538.29 : x
  2. Step 2: Convert to fraction form
    83,681.17/125,521.80 = 52,538.29/x
  3. Step 3: Cross multiply
    83,681.17x = 125,521.80 × 52,538.29
  4. Step 4: Simplify right side
    83,681.17x = 6,594,700,729.72
  5. Step 5: Solve for x
    x = 6,594,700,729.72/83,681.17
  6. Step 6: Final answer
    x = 78,807.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.