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Finding the Fourth Proportional to 86,360.67, 129,541.01 and 49,398.75

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Solution

The fourth proportional to 86,360.67, 129,541.01 and 49,398.75 is: 74,098.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,360.67 : 129,541.01 = 49,398.75 : x
  2. Step 2: Convert to fraction form
    86,360.67/129,541.01 = 49,398.75/x
  3. Step 3: Cross multiply
    86,360.67x = 129,541.01 × 49,398.75
  4. Step 4: Simplify right side
    86,360.67x = 6,399,163,720.74
  5. Step 5: Solve for x
    x = 6,399,163,720.74/86,360.67
  6. Step 6: Final answer
    x = 74,098.13

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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.