Home / 89,779.77-123,902.10-49,493.57

Finding the Fourth Proportional to 89,779.77, 123,902.10 and 49,493.57

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Solution

The fourth proportional to 89,779.77, 123,902.10 and 49,493.57 is: 68,304.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,779.77 : 123,902.10 = 49,493.57 : x
  2. Step 2: Convert to fraction form
    89,779.77/123,902.10 = 49,493.57/x
  3. Step 3: Cross multiply
    89,779.77x = 123,902.10 × 49,493.57
  4. Step 4: Simplify right side
    89,779.77x = 6,132,356,639.99
  5. Step 5: Solve for x
    x = 6,132,356,639.99/89,779.77
  6. Step 6: Final answer
    x = 68,304.44

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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.