Home / 89,642.24-134,385.60-45,231.92

Finding the Fourth Proportional to 89,642.24, 134,385.60 and 45,231.92

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Solution

The fourth proportional to 89,642.24, 134,385.60 and 45,231.92 is: 67,808.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,642.24 : 134,385.60 = 45,231.92 : x
  2. Step 2: Convert to fraction form
    89,642.24/134,385.60 = 45,231.92/x
  3. Step 3: Cross multiply
    89,642.24x = 134,385.60 × 45,231.92
  4. Step 4: Simplify right side
    89,642.24x = 6,078,518,708.35
  5. Step 5: Solve for x
    x = 6,078,518,708.35/89,642.24
  6. Step 6: Final answer
    x = 67,808.64

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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.