Home / 77,001.60-115,542.88-54,656.48

Finding the Fourth Proportional to 77,001.60, 115,542.88 and 54,656.48

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Solution

The fourth proportional to 77,001.60, 115,542.88 and 54,656.48 is: 82,013.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,001.60 : 115,542.88 = 54,656.48 : x
  2. Step 2: Convert to fraction form
    77,001.60/115,542.88 = 54,656.48/x
  3. Step 3: Cross multiply
    77,001.60x = 115,542.88 × 54,656.48
  4. Step 4: Simplify right side
    77,001.60x = 6,315,167,109.86
  5. Step 5: Solve for x
    x = 6,315,167,109.86/77,001.60
  6. Step 6: Final answer
    x = 82,013.45

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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.