Home / 89,129.34-122,999.85-48,842.78

Finding the Fourth Proportional to 89,129.34, 122,999.85 and 48,842.78

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Solution

The fourth proportional to 89,129.34, 122,999.85 and 48,842.78 is: 67,403.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,129.34 : 122,999.85 = 48,842.78 : x
  2. Step 2: Convert to fraction form
    89,129.34/122,999.85 = 48,842.78/x
  3. Step 3: Cross multiply
    89,129.34x = 122,999.85 × 48,842.78
  4. Step 4: Simplify right side
    89,129.34x = 6,007,653,998.58
  5. Step 5: Solve for x
    x = 6,007,653,998.58/89,129.34
  6. Step 6: Final answer
    x = 67,403.78

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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.