Home / 86,569.85-129,868.41-36,650.22

Finding the Fourth Proportional to 86,569.85, 129,868.41 and 36,650.22

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Solution

The fourth proportional to 86,569.85, 129,868.41 and 36,650.22 is: 54,981.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,569.85 : 129,868.41 = 36,650.22 : x
  2. Step 2: Convert to fraction form
    86,569.85/129,868.41 = 36,650.22/x
  3. Step 3: Cross multiply
    86,569.85x = 129,868.41 × 36,650.22
  4. Step 4: Simplify right side
    86,569.85x = 4,759,705,797.55
  5. Step 5: Solve for x
    x = 4,759,705,797.55/86,569.85
  6. Step 6: Final answer
    x = 54,981.11

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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.