Home / 86,939.48-119,980.98-48,696.78

Finding the Fourth Proportional to 86,939.48, 119,980.98 and 48,696.78

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Solution

The fourth proportional to 86,939.48, 119,980.98 and 48,696.78 is: 67,204.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,939.48 : 119,980.98 = 48,696.78 : x
  2. Step 2: Convert to fraction form
    86,939.48/119,980.98 = 48,696.78/x
  3. Step 3: Cross multiply
    86,939.48x = 119,980.98 × 48,696.78
  4. Step 4: Simplify right side
    86,939.48x = 5,842,687,387.24
  5. Step 5: Solve for x
    x = 5,842,687,387.24/86,939.48
  6. Step 6: Final answer
    x = 67,204.08

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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.