Home / 72,440.20-108,692.70-34,985.80

Finding the Fourth Proportional to 72,440.20, 108,692.70 and 34,985.80

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Solution

The fourth proportional to 72,440.20, 108,692.70 and 34,985.80 is: 52,494.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,440.20 : 108,692.70 = 34,985.80 : x
  2. Step 2: Convert to fraction form
    72,440.20/108,692.70 = 34,985.80/x
  3. Step 3: Cross multiply
    72,440.20x = 108,692.70 × 34,985.80
  4. Step 4: Simplify right side
    72,440.20x = 3,802,701,063.66
  5. Step 5: Solve for x
    x = 3,802,701,063.66/72,440.20
  6. Step 6: Final answer
    x = 52,494.35

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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.