Home / 78,937.29-118,403.22-19,773.48

Finding the Fourth Proportional to 78,937.29, 118,403.22 and 19,773.48

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Solution

The fourth proportional to 78,937.29, 118,403.22 and 19,773.48 is: 29,659.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,937.29 : 118,403.22 = 19,773.48 : x
  2. Step 2: Convert to fraction form
    78,937.29/118,403.22 = 19,773.48/x
  3. Step 3: Cross multiply
    78,937.29x = 118,403.22 × 19,773.48
  4. Step 4: Simplify right side
    78,937.29x = 2,341,243,702.61
  5. Step 5: Solve for x
    x = 2,341,243,702.61/78,937.29
  6. Step 6: Final answer
    x = 29,659.54

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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.