Home / 91,308.26-126,044.20-55,509.71

Finding the Fourth Proportional to 91,308.26, 126,044.20 and 55,509.71

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Solution

The fourth proportional to 91,308.26, 126,044.20 and 55,509.71 is: 76,626.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,308.26 : 126,044.20 = 55,509.71 : x
  2. Step 2: Convert to fraction form
    91,308.26/126,044.20 = 55,509.71/x
  3. Step 3: Cross multiply
    91,308.26x = 126,044.20 × 55,509.71
  4. Step 4: Simplify right side
    91,308.26x = 6,996,676,428.35
  5. Step 5: Solve for x
    x = 6,996,676,428.35/91,308.26
  6. Step 6: Final answer
    x = 76,626.98

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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.