Home / 71,931.22-107,963.38-36,417.50

Finding the Fourth Proportional to 71,931.22, 107,963.38 and 36,417.50

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Solution

The fourth proportional to 71,931.22, 107,963.38 and 36,417.50 is: 54,659.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,931.22 : 107,963.38 = 36,417.50 : x
  2. Step 2: Convert to fraction form
    71,931.22/107,963.38 = 36,417.50/x
  3. Step 3: Cross multiply
    71,931.22x = 107,963.38 × 36,417.50
  4. Step 4: Simplify right side
    71,931.22x = 3,931,756,301.72
  5. Step 5: Solve for x
    x = 3,931,756,301.72/71,931.22
  6. Step 6: Final answer
    x = 54,659.94

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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.