Home / 85,019.79-127,541.49-37,631.13

Finding the Fourth Proportional to 85,019.79, 127,541.49 and 37,631.13

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Solution

The fourth proportional to 85,019.79, 127,541.49 and 37,631.13 is: 56,451.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,019.79 : 127,541.49 = 37,631.13 : x
  2. Step 2: Convert to fraction form
    85,019.79/127,541.49 = 37,631.13/x
  3. Step 3: Cross multiply
    85,019.79x = 127,541.49 × 37,631.13
  4. Step 4: Simplify right side
    85,019.79x = 4,799,530,390.58
  5. Step 5: Solve for x
    x = 4,799,530,390.58/85,019.79
  6. Step 6: Final answer
    x = 56,451.92

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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.