Home / 80,800.09-121,159.56-47,077.02

Finding the Fourth Proportional to 80,800.09, 121,159.56 and 47,077.02

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Solution

The fourth proportional to 80,800.09, 121,159.56 and 47,077.02 is: 70,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,800.09 : 121,159.56 = 47,077.02 : x
  2. Step 2: Convert to fraction form
    80,800.09/121,159.56 = 47,077.02/x
  3. Step 3: Cross multiply
    80,800.09x = 121,159.56 × 47,077.02
  4. Step 4: Simplify right side
    80,800.09x = 5,703,830,726.41
  5. Step 5: Solve for x
    x = 5,703,830,726.41/80,800.09
  6. Step 6: Final answer
    x = 70,591.89

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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.