Home / 70,787.10-97,686.89-38,956.73

Finding the Fourth Proportional to 70,787.10, 97,686.89 and 38,956.73

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Solution

The fourth proportional to 70,787.10, 97,686.89 and 38,956.73 is: 53,760.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,787.10 : 97,686.89 = 38,956.73 : x
  2. Step 2: Convert to fraction form
    70,787.10/97,686.89 = 38,956.73/x
  3. Step 3: Cross multiply
    70,787.10x = 97,686.89 × 38,956.73
  4. Step 4: Simplify right side
    70,787.10x = 3,805,561,115.05
  5. Step 5: Solve for x
    x = 3,805,561,115.05/70,787.10
  6. Step 6: Final answer
    x = 53,760.66

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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.