Home / 78,767.93-118,167.28-25,473.15

Finding the Fourth Proportional to 78,767.93, 118,167.28 and 25,473.15

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Solution

The fourth proportional to 78,767.93, 118,167.28 and 25,473.15 is: 38,214.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,767.93 : 118,167.28 = 25,473.15 : x
  2. Step 2: Convert to fraction form
    78,767.93/118,167.28 = 25,473.15/x
  3. Step 3: Cross multiply
    78,767.93x = 118,167.28 × 25,473.15
  4. Step 4: Simplify right side
    78,767.93x = 3,010,092,784.85
  5. Step 5: Solve for x
    x = 3,010,092,784.85/78,767.93
  6. Step 6: Final answer
    x = 38,214.70

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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.