Home / 40,203.64-55,735.14-38,070.72

Finding the Fourth Proportional to 40,203.64, 55,735.14 and 38,070.72

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Solution

The fourth proportional to 40,203.64, 55,735.14 and 38,070.72 is: 52,778.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,203.64 : 55,735.14 = 38,070.72 : x
  2. Step 2: Convert to fraction form
    40,203.64/55,735.14 = 38,070.72/x
  3. Step 3: Cross multiply
    40,203.64x = 55,735.14 × 38,070.72
  4. Step 4: Simplify right side
    40,203.64x = 2,121,876,909.10
  5. Step 5: Solve for x
    x = 2,121,876,909.10/40,203.64
  6. Step 6: Final answer
    x = 52,778.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.