Home / 91,364.08-126,121.30-55,565.58

Finding the Fourth Proportional to 91,364.08, 126,121.30 and 55,565.58

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Solution

The fourth proportional to 91,364.08, 126,121.30 and 55,565.58 is: 76,704.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,364.08 : 126,121.30 = 55,565.58 : x
  2. Step 2: Convert to fraction form
    91,364.08/126,121.30 = 55,565.58/x
  3. Step 3: Cross multiply
    91,364.08x = 126,121.30 × 55,565.58
  4. Step 4: Simplify right side
    91,364.08x = 7,008,003,184.85
  5. Step 5: Solve for x
    x = 7,008,003,184.85/91,364.08
  6. Step 6: Final answer
    x = 76,704.14

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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.