Home / 55,242.16-82,851.30-15,788.68

Finding the Fourth Proportional to 55,242.16, 82,851.30 and 15,788.68

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Solution

The fourth proportional to 55,242.16, 82,851.30 and 15,788.68 is: 23,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,242.16 : 82,851.30 = 15,788.68 : x
  2. Step 2: Convert to fraction form
    55,242.16/82,851.30 = 15,788.68/x
  3. Step 3: Cross multiply
    55,242.16x = 82,851.30 × 15,788.68
  4. Step 4: Simplify right side
    55,242.16x = 1,308,112,663.28
  5. Step 5: Solve for x
    x = 1,308,112,663.28/55,242.16
  6. Step 6: Final answer
    x = 23,679.61

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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.