Home / 76,612.47-115,026.36-39,199.38

Finding the Fourth Proportional to 76,612.47, 115,026.36 and 39,199.38

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Solution

The fourth proportional to 76,612.47, 115,026.36 and 39,199.38 is: 58,854.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,612.47 : 115,026.36 = 39,199.38 : x
  2. Step 2: Convert to fraction form
    76,612.47/115,026.36 = 39,199.38/x
  3. Step 3: Cross multiply
    76,612.47x = 115,026.36 × 39,199.38
  4. Step 4: Simplify right side
    76,612.47x = 4,508,961,995.66
  5. Step 5: Solve for x
    x = 4,508,961,995.66/76,612.47
  6. Step 6: Final answer
    x = 58,854.15

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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.