Home / 81,226.49-112,092.19-45,416.50

Finding the Fourth Proportional to 81,226.49, 112,092.19 and 45,416.50

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Solution

The fourth proportional to 81,226.49, 112,092.19 and 45,416.50 is: 62,674.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,226.49 : 112,092.19 = 45,416.50 : x
  2. Step 2: Convert to fraction form
    81,226.49/112,092.19 = 45,416.50/x
  3. Step 3: Cross multiply
    81,226.49x = 112,092.19 × 45,416.50
  4. Step 4: Simplify right side
    81,226.49x = 5,090,834,947.14
  5. Step 5: Solve for x
    x = 5,090,834,947.14/81,226.49
  6. Step 6: Final answer
    x = 62,674.57

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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.