Home / 68,948.03-103,326.35-31,416.38

Finding the Fourth Proportional to 68,948.03, 103,326.35 and 31,416.38

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Solution

The fourth proportional to 68,948.03, 103,326.35 and 31,416.38 is: 47,080.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,948.03 : 103,326.35 = 31,416.38 : x
  2. Step 2: Convert to fraction form
    68,948.03/103,326.35 = 31,416.38/x
  3. Step 3: Cross multiply
    68,948.03x = 103,326.35 × 31,416.38
  4. Step 4: Simplify right side
    68,948.03x = 3,246,139,875.61
  5. Step 5: Solve for x
    x = 3,246,139,875.61/68,948.03
  6. Step 6: Final answer
    x = 47,080.97

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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.