Home / 82,811.08-124,139.40-32,881.60

Finding the Fourth Proportional to 82,811.08, 124,139.40 and 32,881.60

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Solution

The fourth proportional to 82,811.08, 124,139.40 and 32,881.60 is: 49,291.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,811.08 : 124,139.40 = 32,881.60 : x
  2. Step 2: Convert to fraction form
    82,811.08/124,139.40 = 32,881.60/x
  3. Step 3: Cross multiply
    82,811.08x = 124,139.40 × 32,881.60
  4. Step 4: Simplify right side
    82,811.08x = 4,081,902,095.04
  5. Step 5: Solve for x
    x = 4,081,902,095.04/82,811.08
  6. Step 6: Final answer
    x = 49,291.74

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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.