Home / 86,221.53-129,220.20-48,269.25

Finding the Fourth Proportional to 86,221.53, 129,220.20 and 48,269.25

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Solution

The fourth proportional to 86,221.53, 129,220.20 and 48,269.25 is: 72,341.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,221.53 : 129,220.20 = 48,269.25 : x
  2. Step 2: Convert to fraction form
    86,221.53/129,220.20 = 48,269.25/x
  3. Step 3: Cross multiply
    86,221.53x = 129,220.20 × 48,269.25
  4. Step 4: Simplify right side
    86,221.53x = 6,237,362,138.85
  5. Step 5: Solve for x
    x = 6,237,362,138.85/86,221.53
  6. Step 6: Final answer
    x = 72,341.12

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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.