Home / 89,186.46-123,079.66-50,421.20

Finding the Fourth Proportional to 89,186.46, 123,079.66 and 50,421.20

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Solution

The fourth proportional to 89,186.46, 123,079.66 and 50,421.20 is: 69,582.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,186.46 : 123,079.66 = 50,421.20 : x
  2. Step 2: Convert to fraction form
    89,186.46/123,079.66 = 50,421.20/x
  3. Step 3: Cross multiply
    89,186.46x = 123,079.66 × 50,421.20
  4. Step 4: Simplify right side
    89,186.46x = 6,205,824,152.79
  5. Step 5: Solve for x
    x = 6,205,824,152.79/89,186.46
  6. Step 6: Final answer
    x = 69,582.58

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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.