Home / 91,712.56-126,590.34-59,886.40

Finding the Fourth Proportional to 91,712.56, 126,590.34 and 59,886.40

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Solution

The fourth proportional to 91,712.56, 126,590.34 and 59,886.40 is: 82,660.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,712.56 : 126,590.34 = 59,886.40 : x
  2. Step 2: Convert to fraction form
    91,712.56/126,590.34 = 59,886.40/x
  3. Step 3: Cross multiply
    91,712.56x = 126,590.34 × 59,886.40
  4. Step 4: Simplify right side
    91,712.56x = 7,581,039,737.38
  5. Step 5: Solve for x
    x = 7,581,039,737.38/91,712.56
  6. Step 6: Final answer
    x = 82,660.87

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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.