Home / 82,811.60-124,207.80-23,656.40

Finding the Fourth Proportional to 82,811.60, 124,207.80 and 23,656.40

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Solution

The fourth proportional to 82,811.60, 124,207.80 and 23,656.40 is: 35,481.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,811.60 : 124,207.80 = 23,656.40 : x
  2. Step 2: Convert to fraction form
    82,811.60/124,207.80 = 23,656.40/x
  3. Step 3: Cross multiply
    82,811.60x = 124,207.80 × 23,656.40
  4. Step 4: Simplify right side
    82,811.60x = 2,938,309,399.92
  5. Step 5: Solve for x
    x = 2,938,309,399.92/82,811.60
  6. Step 6: Final answer
    x = 35,481.86

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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.