Home / 78,441.23-108,251.28-48,244.29

Finding the Fourth Proportional to 78,441.23, 108,251.28 and 48,244.29

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Solution

The fourth proportional to 78,441.23, 108,251.28 and 48,244.29 is: 66,578.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,441.23 : 108,251.28 = 48,244.29 : x
  2. Step 2: Convert to fraction form
    78,441.23/108,251.28 = 48,244.29/x
  3. Step 3: Cross multiply
    78,441.23x = 108,251.28 × 48,244.29
  4. Step 4: Simplify right side
    78,441.23x = 5,222,506,145.19
  5. Step 5: Solve for x
    x = 5,222,506,145.19/78,441.23
  6. Step 6: Final answer
    x = 66,578.59

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1.5x scale

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.