Home / 81,566.62-122,153.10-46,399.66

Finding the Fourth Proportional to 81,566.62, 122,153.10 and 46,399.66

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Solution

The fourth proportional to 81,566.62, 122,153.10 and 46,399.66 is: 69,487.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,566.62 : 122,153.10 = 46,399.66 : x
  2. Step 2: Convert to fraction form
    81,566.62/122,153.10 = 46,399.66/x
  3. Step 3: Cross multiply
    81,566.62x = 122,153.10 × 46,399.66
  4. Step 4: Simplify right side
    81,566.62x = 5,667,862,307.95
  5. Step 5: Solve for x
    x = 5,667,862,307.95/81,566.62
  6. Step 6: Final answer
    x = 69,487.52

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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.