Home / 81,562.62-112,437.27-57,647.10

Finding the Fourth Proportional to 81,562.62, 112,437.27 and 57,647.10

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Solution

The fourth proportional to 81,562.62, 112,437.27 and 57,647.10 is: 79,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,562.62 : 112,437.27 = 57,647.10 : x
  2. Step 2: Convert to fraction form
    81,562.62/112,437.27 = 57,647.10/x
  3. Step 3: Cross multiply
    81,562.62x = 112,437.27 × 57,647.10
  4. Step 4: Simplify right side
    81,562.62x = 6,481,682,547.42
  5. Step 5: Solve for x
    x = 6,481,682,547.42/81,562.62
  6. Step 6: Final answer
    x = 79,468.79

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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.