Home / 86,661.33-119,591.15-48,421.64

Finding the Fourth Proportional to 86,661.33, 119,591.15 and 48,421.64

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Solution

The fourth proportional to 86,661.33, 119,591.15 and 48,421.64 is: 66,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,661.33 : 119,591.15 = 48,421.64 : x
  2. Step 2: Convert to fraction form
    86,661.33/119,591.15 = 48,421.64/x
  3. Step 3: Cross multiply
    86,661.33x = 119,591.15 × 48,421.64
  4. Step 4: Simplify right side
    86,661.33x = 5,790,798,772.42
  5. Step 5: Solve for x
    x = 5,790,798,772.42/86,661.33
  6. Step 6: Final answer
    x = 66,821.02

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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.