Home / 82,788.93-124,168.68-35,430.66

Finding the Fourth Proportional to 82,788.93, 124,168.68 and 35,430.66

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Solution

The fourth proportional to 82,788.93, 124,168.68 and 35,430.66 is: 53,139.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,788.93 : 124,168.68 = 35,430.66 : x
  2. Step 2: Convert to fraction form
    82,788.93/124,168.68 = 35,430.66/x
  3. Step 3: Cross multiply
    82,788.93x = 124,168.68 × 35,430.66
  4. Step 4: Simplify right side
    82,788.93x = 4,399,378,283.73
  5. Step 5: Solve for x
    x = 4,399,378,283.73/82,788.93
  6. Step 6: Final answer
    x = 53,139.69

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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.