Home / 78,652.12-117,938.06-26,042.62

Finding the Fourth Proportional to 78,652.12, 117,938.06 and 26,042.62

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Solution

The fourth proportional to 78,652.12, 117,938.06 and 26,042.62 is: 39,050.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,652.12 : 117,938.06 = 26,042.62 : x
  2. Step 2: Convert to fraction form
    78,652.12/117,938.06 = 26,042.62/x
  3. Step 3: Cross multiply
    78,652.12x = 117,938.06 × 26,042.62
  4. Step 4: Simplify right side
    78,652.12x = 3,071,416,080.12
  5. Step 5: Solve for x
    x = 3,071,416,080.12/78,652.12
  6. Step 6: Final answer
    x = 39,050.65

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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.