Home / 86,285.94-129,319.29-38,850.18

Finding the Fourth Proportional to 86,285.94, 129,319.29 and 38,850.18

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Solution

The fourth proportional to 86,285.94, 129,319.29 and 38,850.18 is: 58,225.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,285.94 : 129,319.29 = 38,850.18 : x
  2. Step 2: Convert to fraction form
    86,285.94/129,319.29 = 38,850.18/x
  3. Step 3: Cross multiply
    86,285.94x = 129,319.29 × 38,850.18
  4. Step 4: Simplify right side
    86,285.94x = 5,024,077,693.97
  5. Step 5: Solve for x
    x = 5,024,077,693.97/86,285.94
  6. Step 6: Final answer
    x = 58,225.91

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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.