Home / 81,674.40-112,706.64-45,865.92

Finding the Fourth Proportional to 81,674.40, 112,706.64 and 45,865.92

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Solution

The fourth proportional to 81,674.40, 112,706.64 and 45,865.92 is: 63,292.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,674.40 : 112,706.64 = 45,865.92 : x
  2. Step 2: Convert to fraction form
    81,674.40/112,706.64 = 45,865.92/x
  3. Step 3: Cross multiply
    81,674.40x = 112,706.64 × 45,865.92
  4. Step 4: Simplify right side
    81,674.40x = 5,169,393,733.71
  5. Step 5: Solve for x
    x = 5,169,393,733.71/81,674.40
  6. Step 6: Final answer
    x = 63,292.71

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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.