Home / 109,062.80-163,618.68-38,942

Finding the Fourth Proportional to 109,062.80, 163,618.68 and 38,942

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Solution

The fourth proportional to 109,062.80, 163,618.68 and 38,942 is: 58,421.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,062.80 : 163,618.68 = 38,942 : x
  2. Step 2: Convert to fraction form
    109,062.80/163,618.68 = 38,942/x
  3. Step 3: Cross multiply
    109,062.80x = 163,618.68 × 38,942
  4. Step 4: Simplify right side
    109,062.80x = 6,371,638,636.56
  5. Step 5: Solve for x
    x = 6,371,638,636.56/109,062.80
  6. Step 6: Final answer
    x = 58,421.74

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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.