Home / 66,821.76-92,335.68-63,582.72

Finding the Fourth Proportional to 66,821.76, 92,335.68 and 63,582.72

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Solution

The fourth proportional to 66,821.76, 92,335.68 and 63,582.72 is: 87,859.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,821.76 : 92,335.68 = 63,582.72 : x
  2. Step 2: Convert to fraction form
    66,821.76/92,335.68 = 63,582.72/x
  3. Step 3: Cross multiply
    66,821.76x = 92,335.68 × 63,582.72
  4. Step 4: Simplify right side
    66,821.76x = 5,870,953,687.45
  5. Step 5: Solve for x
    x = 5,870,953,687.45/66,821.76
  6. Step 6: Final answer
    x = 87,859.91

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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.