Home / 81,724.14-112,784.13-61,545.42

Finding the Fourth Proportional to 81,724.14, 112,784.13 and 61,545.42

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Solution

The fourth proportional to 81,724.14, 112,784.13 and 61,545.42 is: 84,936.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,724.14 : 112,784.13 = 61,545.42 : x
  2. Step 2: Convert to fraction form
    81,724.14/112,784.13 = 61,545.42/x
  3. Step 3: Cross multiply
    81,724.14x = 112,784.13 × 61,545.42
  4. Step 4: Simplify right side
    81,724.14x = 6,941,346,650.18
  5. Step 5: Solve for x
    x = 6,941,346,650.18/81,724.14
  6. Step 6: Final answer
    x = 84,936.31

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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.