Home / 89,979.64-124,172.10-49,692.66

Finding the Fourth Proportional to 89,979.64, 124,172.10 and 49,692.66

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Solution

The fourth proportional to 89,979.64, 124,172.10 and 49,692.66 is: 68,575.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,979.64 : 124,172.10 = 49,692.66 : x
  2. Step 2: Convert to fraction form
    89,979.64/124,172.10 = 49,692.66/x
  3. Step 3: Cross multiply
    89,979.64x = 124,172.10 × 49,692.66
  4. Step 4: Simplify right side
    89,979.64x = 6,170,441,946.79
  5. Step 5: Solve for x
    x = 6,170,441,946.79/89,979.64
  6. Step 6: Final answer
    x = 68,575.98

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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.