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Finding the Fourth Proportional to 79,232.95, 118,581.51 and 77,100.62

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Solution

The fourth proportional to 79,232.95, 118,581.51 and 77,100.62 is: 115,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,232.95 : 118,581.51 = 77,100.62 : x
  2. Step 2: Convert to fraction form
    79,232.95/118,581.51 = 77,100.62/x
  3. Step 3: Cross multiply
    79,232.95x = 118,581.51 × 77,100.62
  4. Step 4: Simplify right side
    79,232.95x = 9,142,708,237.99
  5. Step 5: Solve for x
    x = 9,142,708,237.99/79,232.95
  6. Step 6: Final answer
    x = 115,390.23

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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.