Home / 87,562.26-121,323.96-85,670.52

Finding the Fourth Proportional to 87,562.26, 121,323.96 and 85,670.52

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Solution

The fourth proportional to 87,562.26, 121,323.96 and 85,670.52 is: 118,702.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,562.26 : 121,323.96 = 85,670.52 : x
  2. Step 2: Convert to fraction form
    87,562.26/121,323.96 = 85,670.52/x
  3. Step 3: Cross multiply
    87,562.26x = 121,323.96 × 85,670.52
  4. Step 4: Simplify right side
    87,562.26x = 10,393,886,741.66
  5. Step 5: Solve for x
    x = 10,393,886,741.66/87,562.26
  6. Step 6: Final answer
    x = 118,702.81

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.