Home / 93,728.28-129,347.12-51,286.80

Finding the Fourth Proportional to 93,728.28, 129,347.12 and 51,286.80

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Solution

The fourth proportional to 93,728.28, 129,347.12 and 51,286.80 is: 70,776.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,728.28 : 129,347.12 = 51,286.80 : x
  2. Step 2: Convert to fraction form
    93,728.28/129,347.12 = 51,286.80/x
  3. Step 3: Cross multiply
    93,728.28x = 129,347.12 × 51,286.80
  4. Step 4: Simplify right side
    93,728.28x = 6,633,799,874.02
  5. Step 5: Solve for x
    x = 6,633,799,874.02/93,728.28
  6. Step 6: Final answer
    x = 70,776.93

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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.