Home / 90,635.46-125,042.04-66,818.76

Finding the Fourth Proportional to 90,635.46, 125,042.04 and 66,818.76

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Solution

The fourth proportional to 90,635.46, 125,042.04 and 66,818.76 is: 92,184.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,635.46 : 125,042.04 = 66,818.76 : x
  2. Step 2: Convert to fraction form
    90,635.46/125,042.04 = 66,818.76/x
  3. Step 3: Cross multiply
    90,635.46x = 125,042.04 × 66,818.76
  4. Step 4: Simplify right side
    90,635.46x = 8,355,154,060.67
  5. Step 5: Solve for x
    x = 8,355,154,060.67/90,635.46
  6. Step 6: Final answer
    x = 92,184.16

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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.