Home / 89,728.16-134,631.12-48,126.56

Finding the Fourth Proportional to 89,728.16, 134,631.12 and 48,126.56

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Solution

The fourth proportional to 89,728.16, 134,631.12 and 48,126.56 is: 72,210.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,728.16 : 134,631.12 = 48,126.56 : x
  2. Step 2: Convert to fraction form
    89,728.16/134,631.12 = 48,126.56/x
  3. Step 3: Cross multiply
    89,728.16x = 134,631.12 × 48,126.56
  4. Step 4: Simplify right side
    89,728.16x = 6,479,332,674.55
  5. Step 5: Solve for x
    x = 6,479,332,674.55/89,728.16
  6. Step 6: Final answer
    x = 72,210.69

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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.