Home / 72,258.26-108,403.85-38,977.58

Finding the Fourth Proportional to 72,258.26, 108,403.85 and 38,977.58

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Solution

The fourth proportional to 72,258.26, 108,403.85 and 38,977.58 is: 58,475.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,258.26 : 108,403.85 = 38,977.58 : x
  2. Step 2: Convert to fraction form
    72,258.26/108,403.85 = 38,977.58/x
  3. Step 3: Cross multiply
    72,258.26x = 108,403.85 × 38,977.58
  4. Step 4: Simplify right side
    72,258.26x = 4,225,320,104.14
  5. Step 5: Solve for x
    x = 4,225,320,104.14/72,258.26
  6. Step 6: Final answer
    x = 58,475.26

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1.5x scale

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.