Home / 91,373.28-126,121.83-53,141.76

Finding the Fourth Proportional to 91,373.28, 126,121.83 and 53,141.76

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Solution

The fourth proportional to 91,373.28, 126,121.83 and 53,141.76 is: 73,351.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,373.28 : 126,121.83 = 53,141.76 : x
  2. Step 2: Convert to fraction form
    91,373.28/126,121.83 = 53,141.76/x
  3. Step 3: Cross multiply
    91,373.28x = 126,121.83 × 53,141.76
  4. Step 4: Simplify right side
    91,373.28x = 6,702,336,020.62
  5. Step 5: Solve for x
    x = 6,702,336,020.62/91,373.28
  6. Step 6: Final answer
    x = 73,351.16

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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.