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Finding the Fourth Proportional to 86,389.60, 119,223.84 and 48,151.72

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Solution

The fourth proportional to 86,389.60, 119,223.84 and 48,151.72 is: 66,452.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,389.60 : 119,223.84 = 48,151.72 : x
  2. Step 2: Convert to fraction form
    86,389.60/119,223.84 = 48,151.72/x
  3. Step 3: Cross multiply
    86,389.60x = 119,223.84 × 48,151.72
  4. Step 4: Simplify right side
    86,389.60x = 5,740,832,961.00
  5. Step 5: Solve for x
    x = 5,740,832,961.00/86,389.60
  6. Step 6: Final answer
    x = 66,452.82

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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.