Home / 40,432.90-55,782.20-40,370.66

Finding the Fourth Proportional to 40,432.90, 55,782.20 and 40,370.66

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Solution

The fourth proportional to 40,432.90, 55,782.20 and 40,370.66 is: 55,696.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,432.90 : 55,782.20 = 40,370.66 : x
  2. Step 2: Convert to fraction form
    40,432.90/55,782.20 = 40,370.66/x
  3. Step 3: Cross multiply
    40,432.90x = 55,782.20 × 40,370.66
  4. Step 4: Simplify right side
    40,432.90x = 2,251,964,230.25
  5. Step 5: Solve for x
    x = 2,251,964,230.25/40,432.90
  6. Step 6: Final answer
    x = 55,696.33

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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.