Home / 84,397.02-126,520.29-54,421.98

Finding the Fourth Proportional to 84,397.02, 126,520.29 and 54,421.98

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Solution

The fourth proportional to 84,397.02, 126,520.29 and 54,421.98 is: 81,584.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,397.02 : 126,520.29 = 54,421.98 : x
  2. Step 2: Convert to fraction form
    84,397.02/126,520.29 = 54,421.98/x
  3. Step 3: Cross multiply
    84,397.02x = 126,520.29 × 54,421.98
  4. Step 4: Simplify right side
    84,397.02x = 6,885,484,691.97
  5. Step 5: Solve for x
    x = 6,885,484,691.97/84,397.02
  6. Step 6: Final answer
    x = 81,584.45

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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.