Home / 75,753.32-104,540.10-42,221.48

Finding the Fourth Proportional to 75,753.32, 104,540.10 and 42,221.48

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Solution

The fourth proportional to 75,753.32, 104,540.10 and 42,221.48 is: 58,265.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,753.32 : 104,540.10 = 42,221.48 : x
  2. Step 2: Convert to fraction form
    75,753.32/104,540.10 = 42,221.48/x
  3. Step 3: Cross multiply
    75,753.32x = 104,540.10 × 42,221.48
  4. Step 4: Simplify right side
    75,753.32x = 4,413,837,741.35
  5. Step 5: Solve for x
    x = 4,413,837,741.35/75,753.32
  6. Step 6: Final answer
    x = 58,265.93

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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.