Home / 71,502.22-98,679.19-39,243.07

Finding the Fourth Proportional to 71,502.22, 98,679.19 and 39,243.07

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Solution

The fourth proportional to 71,502.22, 98,679.19 and 39,243.07 is: 54,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,502.22 : 98,679.19 = 39,243.07 : x
  2. Step 2: Convert to fraction form
    71,502.22/98,679.19 = 39,243.07/x
  3. Step 3: Cross multiply
    71,502.22x = 98,679.19 × 39,243.07
  4. Step 4: Simplify right side
    71,502.22x = 3,872,474,360.71
  5. Step 5: Solve for x
    x = 3,872,474,360.71/71,502.22
  6. Step 6: Final answer
    x = 54,158.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.