Home / 71,730.30-107,330.10-43,283.76

Finding the Fourth Proportional to 71,730.30, 107,330.10 and 43,283.76

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Solution

The fourth proportional to 71,730.30, 107,330.10 and 43,283.76 is: 64,765.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,730.30 : 107,330.10 = 43,283.76 : x
  2. Step 2: Convert to fraction form
    71,730.30/107,330.10 = 43,283.76/x
  3. Step 3: Cross multiply
    71,730.30x = 107,330.10 × 43,283.76
  4. Step 4: Simplify right side
    71,730.30x = 4,645,650,289.18
  5. Step 5: Solve for x
    x = 4,645,650,289.18/71,730.30
  6. Step 6: Final answer
    x = 64,765.52

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1.5x scale

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.