Home / 65,815.29-90,799.26-38,948.01

Finding the Fourth Proportional to 65,815.29, 90,799.26 and 38,948.01

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Solution

The fourth proportional to 65,815.29, 90,799.26 and 38,948.01 is: 53,732.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,815.29 : 90,799.26 = 38,948.01 : x
  2. Step 2: Convert to fraction form
    65,815.29/90,799.26 = 38,948.01/x
  3. Step 3: Cross multiply
    65,815.29x = 90,799.26 × 38,948.01
  4. Step 4: Simplify right side
    65,815.29x = 3,536,450,486.47
  5. Step 5: Solve for x
    x = 3,536,450,486.47/65,815.29
  6. Step 6: Final answer
    x = 53,732.96

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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.