Home / 40,271.60-60,335.40-19,449.20

Finding the Fourth Proportional to 40,271.60, 60,335.40 and 19,449.20

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Solution

The fourth proportional to 40,271.60, 60,335.40 and 19,449.20 is: 29,139.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,271.60 : 60,335.40 = 19,449.20 : x
  2. Step 2: Convert to fraction form
    40,271.60/60,335.40 = 19,449.20/x
  3. Step 3: Cross multiply
    40,271.60x = 60,335.40 × 19,449.20
  4. Step 4: Simplify right side
    40,271.60x = 1,173,475,261.68
  5. Step 5: Solve for x
    x = 1,173,475,261.68/40,271.60
  6. Step 6: Final answer
    x = 29,139.03

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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.