Home / 86,160.34-129,250.32-39,407.14

Finding the Fourth Proportional to 86,160.34, 129,250.32 and 39,407.14

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Solution

The fourth proportional to 86,160.34, 129,250.32 and 39,407.14 is: 59,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,160.34 : 129,250.32 = 39,407.14 : x
  2. Step 2: Convert to fraction form
    86,160.34/129,250.32 = 39,407.14/x
  3. Step 3: Cross multiply
    86,160.34x = 129,250.32 × 39,407.14
  4. Step 4: Simplify right side
    86,160.34x = 5,093,385,455.28
  5. Step 5: Solve for x
    x = 5,093,385,455.28/86,160.34
  6. Step 6: Final answer
    x = 59,115.20

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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.