Home / 40,778.64-61,261.56-28,961.55

Finding the Fourth Proportional to 40,778.64, 61,261.56 and 28,961.55

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Solution

The fourth proportional to 40,778.64, 61,261.56 and 28,961.55 is: 43,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,778.64 : 61,261.56 = 28,961.55 : x
  2. Step 2: Convert to fraction form
    40,778.64/61,261.56 = 28,961.55/x
  3. Step 3: Cross multiply
    40,778.64x = 61,261.56 × 28,961.55
  4. Step 4: Simplify right side
    40,778.64x = 1,774,229,733.02
  5. Step 5: Solve for x
    x = 1,774,229,733.02/40,778.64
  6. Step 6: Final answer
    x = 43,508.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.