Home / 91,320.35-126,102.35-57,387.83

Finding the Fourth Proportional to 91,320.35, 126,102.35 and 57,387.83

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Solution

The fourth proportional to 91,320.35, 126,102.35 and 57,387.83 is: 79,245.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,320.35 : 126,102.35 = 57,387.83 : x
  2. Step 2: Convert to fraction form
    91,320.35/126,102.35 = 57,387.83/x
  3. Step 3: Cross multiply
    91,320.35x = 126,102.35 × 57,387.83
  4. Step 4: Simplify right side
    91,320.35x = 7,236,739,737.36
  5. Step 5: Solve for x
    x = 7,236,739,737.36/91,320.35
  6. Step 6: Final answer
    x = 79,245.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.