Home / 79,566.78-109,689.08-63,291.36

Finding the Fourth Proportional to 79,566.78, 109,689.08 and 63,291.36

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Solution

The fourth proportional to 79,566.78, 109,689.08 and 63,291.36 is: 87,252.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,566.78 : 109,689.08 = 63,291.36 : x
  2. Step 2: Convert to fraction form
    79,566.78/109,689.08 = 63,291.36/x
  3. Step 3: Cross multiply
    79,566.78x = 109,689.08 × 63,291.36
  4. Step 4: Simplify right side
    79,566.78x = 6,942,371,050.35
  5. Step 5: Solve for x
    x = 6,942,371,050.35/79,566.78
  6. Step 6: Final answer
    x = 87,252.13

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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.