Home / 91,432.19-126,186.87-51,156.15

Finding the Fourth Proportional to 91,432.19, 126,186.87 and 51,156.15

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Solution

The fourth proportional to 91,432.19, 126,186.87 and 51,156.15 is: 70,601.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,432.19 : 126,186.87 = 51,156.15 : x
  2. Step 2: Convert to fraction form
    91,432.19/126,186.87 = 51,156.15/x
  3. Step 3: Cross multiply
    91,432.19x = 126,186.87 × 51,156.15
  4. Step 4: Simplify right side
    91,432.19x = 6,455,234,449.75
  5. Step 5: Solve for x
    x = 6,455,234,449.75/91,432.19
  6. Step 6: Final answer
    x = 70,601.34

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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.