Home / 40,986.40-61,479.60-29,840.80

Finding the Fourth Proportional to 40,986.40, 61,479.60 and 29,840.80

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Solution

The fourth proportional to 40,986.40, 61,479.60 and 29,840.80 is: 44,761.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,986.40 : 61,479.60 = 29,840.80 : x
  2. Step 2: Convert to fraction form
    40,986.40/61,479.60 = 29,840.80/x
  3. Step 3: Cross multiply
    40,986.40x = 61,479.60 × 29,840.80
  4. Step 4: Simplify right side
    40,986.40x = 1,834,600,447.68
  5. Step 5: Solve for x
    x = 1,834,600,447.68/40,986.40
  6. Step 6: Final answer
    x = 44,761.20

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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.