Home / 78,062.08-117,111.82-25,471.68

Finding the Fourth Proportional to 78,062.08, 117,111.82 and 25,471.68

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Solution

The fourth proportional to 78,062.08, 117,111.82 and 25,471.68 is: 38,213.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,062.08 : 117,111.82 = 25,471.68 : x
  2. Step 2: Convert to fraction form
    78,062.08/117,111.82 = 25,471.68/x
  3. Step 3: Cross multiply
    78,062.08x = 117,111.82 × 25,471.68
  4. Step 4: Simplify right side
    78,062.08x = 2,983,034,803.26
  5. Step 5: Solve for x
    x = 2,983,034,803.26/78,062.08
  6. Step 6: Final answer
    x = 38,213.62

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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.