Home / 40,778.40-56,239.20-26,425.20

Finding the Fourth Proportional to 40,778.40, 56,239.20 and 26,425.20

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Solution

The fourth proportional to 40,778.40, 56,239.20 and 26,425.20 is: 36,444.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,778.40 : 56,239.20 = 26,425.20 : x
  2. Step 2: Convert to fraction form
    40,778.40/56,239.20 = 26,425.20/x
  3. Step 3: Cross multiply
    40,778.40x = 56,239.20 × 26,425.20
  4. Step 4: Simplify right side
    40,778.40x = 1,486,132,107.84
  5. Step 5: Solve for x
    x = 1,486,132,107.84/40,778.40
  6. Step 6: Final answer
    x = 36,444.10

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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.