Home / 93,728.18-129,344.90-51,286.72

Finding the Fourth Proportional to 93,728.18, 129,344.90 and 51,286.72

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Solution

The fourth proportional to 93,728.18, 129,344.90 and 51,286.72 is: 70,775.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,728.18 : 129,344.90 = 51,286.72 : x
  2. Step 2: Convert to fraction form
    93,728.18/129,344.90 = 51,286.72/x
  3. Step 3: Cross multiply
    93,728.18x = 129,344.90 × 51,286.72
  4. Step 4: Simplify right side
    93,728.18x = 6,633,675,669.73
  5. Step 5: Solve for x
    x = 6,633,675,669.73/93,728.18
  6. Step 6: Final answer
    x = 70,775.68

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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.