Home / 71,865.61-107,748.69-31,862.74

Finding the Fourth Proportional to 71,865.61, 107,748.69 and 31,862.74

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Solution

The fourth proportional to 71,865.61, 107,748.69 and 31,862.74 is: 47,772.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,865.61 : 107,748.69 = 31,862.74 : x
  2. Step 2: Convert to fraction form
    71,865.61/107,748.69 = 31,862.74/x
  3. Step 3: Cross multiply
    71,865.61x = 107,748.69 × 31,862.74
  4. Step 4: Simplify right side
    71,865.61x = 3,433,168,494.81
  5. Step 5: Solve for x
    x = 3,433,168,494.81/71,865.61
  6. Step 6: Final answer
    x = 47,772.06

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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.