Home / 91,714.68-137,506.01-45,000.36

Finding the Fourth Proportional to 91,714.68, 137,506.01 and 45,000.36

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Solution

The fourth proportional to 91,714.68, 137,506.01 and 45,000.36 is: 67,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,714.68 : 137,506.01 = 45,000.36 : x
  2. Step 2: Convert to fraction form
    91,714.68/137,506.01 = 45,000.36/x
  3. Step 3: Cross multiply
    91,714.68x = 137,506.01 × 45,000.36
  4. Step 4: Simplify right side
    91,714.68x = 6,187,819,727.16
  5. Step 5: Solve for x
    x = 6,187,819,727.16/91,714.68
  6. Step 6: Final answer
    x = 67,468.15

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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.