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Finding the Fourth Proportional to 79,883.97, 119,620.95 and 77,518.90

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Solution

The fourth proportional to 79,883.97, 119,620.95 and 77,518.90 is: 116,079.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,883.97 : 119,620.95 = 77,518.90 : x
  2. Step 2: Convert to fraction form
    79,883.97/119,620.95 = 77,518.90/x
  3. Step 3: Cross multiply
    79,883.97x = 119,620.95 × 77,518.90
  4. Step 4: Simplify right side
    79,883.97x = 9,272,884,460.96
  5. Step 5: Solve for x
    x = 9,272,884,460.96/79,883.97
  6. Step 6: Final answer
    x = 116,079.41

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1.5x scale

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.