Home / 89,743.44-123,827.40-61,438.80

Finding the Fourth Proportional to 89,743.44, 123,827.40 and 61,438.80

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Solution

The fourth proportional to 89,743.44, 123,827.40 and 61,438.80 is: 84,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,743.44 : 123,827.40 = 61,438.80 : x
  2. Step 2: Convert to fraction form
    89,743.44/123,827.40 = 61,438.80/x
  3. Step 3: Cross multiply
    89,743.44x = 123,827.40 × 61,438.80
  4. Step 4: Simplify right side
    89,743.44x = 7,607,806,863.12
  5. Step 5: Solve for x
    x = 7,607,806,863.12/89,743.44
  6. Step 6: Final answer
    x = 84,772.85

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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.