Home / 82,506.66-123,740.15-38,090.74

Finding the Fourth Proportional to 82,506.66, 123,740.15 and 38,090.74

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Solution

The fourth proportional to 82,506.66, 123,740.15 and 38,090.74 is: 57,126.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,506.66 : 123,740.15 = 38,090.74 : x
  2. Step 2: Convert to fraction form
    82,506.66/123,740.15 = 38,090.74/x
  3. Step 3: Cross multiply
    82,506.66x = 123,740.15 × 38,090.74
  4. Step 4: Simplify right side
    82,506.66x = 4,713,353,881.21
  5. Step 5: Solve for x
    x = 4,713,353,881.21/82,506.66
  6. Step 6: Final answer
    x = 57,126.95

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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.