Home / 86,113.78-129,050.38-41,728.75

Finding the Fourth Proportional to 86,113.78, 129,050.38 and 41,728.75

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Solution

The fourth proportional to 86,113.78, 129,050.38 and 41,728.75 is: 62,534.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,113.78 : 129,050.38 = 41,728.75 : x
  2. Step 2: Convert to fraction form
    86,113.78/129,050.38 = 41,728.75/x
  3. Step 3: Cross multiply
    86,113.78x = 129,050.38 × 41,728.75
  4. Step 4: Simplify right side
    86,113.78x = 5,385,111,044.43
  5. Step 5: Solve for x
    x = 5,385,111,044.43/86,113.78
  6. Step 6: Final answer
    x = 62,534.84

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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.