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Finding the Fourth Proportional to 86,387.42, 119,216.57 and 48,150.87

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Solution

The fourth proportional to 86,387.42, 119,216.57 and 48,150.87 is: 66,449.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,387.42 : 119,216.57 = 48,150.87 : x
  2. Step 2: Convert to fraction form
    86,387.42/119,216.57 = 48,150.87/x
  3. Step 3: Cross multiply
    86,387.42x = 119,216.57 × 48,150.87
  4. Step 4: Simplify right side
    86,387.42x = 5,740,381,323.16
  5. Step 5: Solve for x
    x = 5,740,381,323.16/86,387.42
  6. Step 6: Final answer
    x = 66,449.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.