Home / 40,012.20-59,979.90-31,122.60

Finding the Fourth Proportional to 40,012.20, 59,979.90 and 31,122.60

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Solution

The fourth proportional to 40,012.20, 59,979.90 and 31,122.60 is: 46,654.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,012.20 : 59,979.90 = 31,122.60 : x
  2. Step 2: Convert to fraction form
    40,012.20/59,979.90 = 31,122.60/x
  3. Step 3: Cross multiply
    40,012.20x = 59,979.90 × 31,122.60
  4. Step 4: Simplify right side
    40,012.20x = 1,866,730,435.74
  5. Step 5: Solve for x
    x = 1,866,730,435.74/40,012.20
  6. Step 6: Final answer
    x = 46,654.03

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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.