Home / 51,630.85-71,246.20-28,966.78

Finding the Fourth Proportional to 51,630.85, 71,246.20 and 28,966.78

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Solution

The fourth proportional to 51,630.85, 71,246.20 and 28,966.78 is: 39,971.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,630.85 : 71,246.20 = 28,966.78 : x
  2. Step 2: Convert to fraction form
    51,630.85/71,246.20 = 28,966.78/x
  3. Step 3: Cross multiply
    51,630.85x = 71,246.20 × 28,966.78
  4. Step 4: Simplify right side
    51,630.85x = 2,063,772,500.17
  5. Step 5: Solve for x
    x = 2,063,772,500.17/51,630.85
  6. Step 6: Final answer
    x = 39,971.70

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1.5x scale

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.