Home / 89,740.12-123,842.20-49,455.32

Finding the Fourth Proportional to 89,740.12, 123,842.20 and 49,455.32

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Solution

The fourth proportional to 89,740.12, 123,842.20 and 49,455.32 is: 68,248.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,740.12 : 123,842.20 = 49,455.32 : x
  2. Step 2: Convert to fraction form
    89,740.12/123,842.20 = 49,455.32/x
  3. Step 3: Cross multiply
    89,740.12x = 123,842.20 × 49,455.32
  4. Step 4: Simplify right side
    89,740.12x = 6,124,655,630.50
  5. Step 5: Solve for x
    x = 6,124,655,630.50/89,740.12
  6. Step 6: Final answer
    x = 68,248.80

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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.