Home / 81,509.64-122,281.65-25,348.38

Finding the Fourth Proportional to 81,509.64, 122,281.65 and 25,348.38

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Solution

The fourth proportional to 81,509.64, 122,281.65 and 25,348.38 is: 38,027.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,509.64 : 122,281.65 = 25,348.38 : x
  2. Step 2: Convert to fraction form
    81,509.64/122,281.65 = 25,348.38/x
  3. Step 3: Cross multiply
    81,509.64x = 122,281.65 × 25,348.38
  4. Step 4: Simplify right side
    81,509.64x = 3,099,641,731.23
  5. Step 5: Solve for x
    x = 3,099,641,731.23/81,509.64
  6. Step 6: Final answer
    x = 38,027.92

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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.