Home / 89,534.32-134,042.10-67,440.76

Finding the Fourth Proportional to 89,534.32, 134,042.10 and 67,440.76

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Solution

The fourth proportional to 89,534.32, 134,042.10 and 67,440.76 is: 100,965.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,534.32 : 134,042.10 = 67,440.76 : x
  2. Step 2: Convert to fraction form
    89,534.32/134,042.10 = 67,440.76/x
  3. Step 3: Cross multiply
    89,534.32x = 134,042.10 × 67,440.76
  4. Step 4: Simplify right side
    89,534.32x = 9,039,901,096.00
  5. Step 5: Solve for x
    x = 9,039,901,096.00/89,534.32
  6. Step 6: Final answer
    x = 100,965.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.