Home / 55,566.76-76,693.08-31,691.20

Finding the Fourth Proportional to 55,566.76, 76,693.08 and 31,691.20

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Solution

The fourth proportional to 55,566.76, 76,693.08 and 31,691.20 is: 43,740.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,566.76 : 76,693.08 = 31,691.20 : x
  2. Step 2: Convert to fraction form
    55,566.76/76,693.08 = 31,691.20/x
  3. Step 3: Cross multiply
    55,566.76x = 76,693.08 × 31,691.20
  4. Step 4: Simplify right side
    55,566.76x = 2,430,495,736.90
  5. Step 5: Solve for x
    x = 2,430,495,736.90/55,566.76
  6. Step 6: Final answer
    x = 43,740.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.