Home / 89,431.29-123,415.45-49,149.18

Finding the Fourth Proportional to 89,431.29, 123,415.45 and 49,149.18

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Solution

The fourth proportional to 89,431.29, 123,415.45 and 49,149.18 is: 67,826.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,431.29 : 123,415.45 = 49,149.18 : x
  2. Step 2: Convert to fraction form
    89,431.29/123,415.45 = 49,149.18/x
  3. Step 3: Cross multiply
    89,431.29x = 123,415.45 × 49,149.18
  4. Step 4: Simplify right side
    89,431.29x = 6,065,768,043.96
  5. Step 5: Solve for x
    x = 6,065,768,043.96/89,431.29
  6. Step 6: Final answer
    x = 67,826.02

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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.