Home / 40,123.44-55,312.65-28,149.66

Finding the Fourth Proportional to 40,123.44, 55,312.65 and 28,149.66

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Solution

The fourth proportional to 40,123.44, 55,312.65 and 28,149.66 is: 38,806.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,123.44 : 55,312.65 = 28,149.66 : x
  2. Step 2: Convert to fraction form
    40,123.44/55,312.65 = 28,149.66/x
  3. Step 3: Cross multiply
    40,123.44x = 55,312.65 × 28,149.66
  4. Step 4: Simplify right side
    40,123.44x = 1,557,032,291.20
  5. Step 5: Solve for x
    x = 1,557,032,291.20/40,123.44
  6. Step 6: Final answer
    x = 38,806.05

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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.