Home / 70,983.28-97,957.20-39,151.72

Finding the Fourth Proportional to 70,983.28, 97,957.20 and 39,151.72

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Solution

The fourth proportional to 70,983.28, 97,957.20 and 39,151.72 is: 54,029.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,983.28 : 97,957.20 = 39,151.72 : x
  2. Step 2: Convert to fraction form
    70,983.28/97,957.20 = 39,151.72/x
  3. Step 3: Cross multiply
    70,983.28x = 97,957.20 × 39,151.72
  4. Step 4: Simplify right side
    70,983.28x = 3,835,192,866.38
  5. Step 5: Solve for x
    x = 3,835,192,866.38/70,983.28
  6. Step 6: Final answer
    x = 54,029.52

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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.