Home / 72,458.10-108,692.55-25,704.90

Finding the Fourth Proportional to 72,458.10, 108,692.55 and 25,704.90

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Solution

The fourth proportional to 72,458.10, 108,692.55 and 25,704.90 is: 38,559.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,458.10 : 108,692.55 = 25,704.90 : x
  2. Step 2: Convert to fraction form
    72,458.10/108,692.55 = 25,704.90/x
  3. Step 3: Cross multiply
    72,458.10x = 108,692.55 × 25,704.90
  4. Step 4: Simplify right side
    72,458.10x = 2,793,931,128.50
  5. Step 5: Solve for x
    x = 2,793,931,128.50/72,458.10
  6. Step 6: Final answer
    x = 38,559.27

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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.