Home / 77,983.56-117,006.12-40,567.10

Finding the Fourth Proportional to 77,983.56, 117,006.12 and 40,567.10

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Solution

The fourth proportional to 77,983.56, 117,006.12 and 40,567.10 is: 60,866.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,983.56 : 117,006.12 = 40,567.10 : x
  2. Step 2: Convert to fraction form
    77,983.56/117,006.12 = 40,567.10/x
  3. Step 3: Cross multiply
    77,983.56x = 117,006.12 × 40,567.10
  4. Step 4: Simplify right side
    77,983.56x = 4,746,598,385.62
  5. Step 5: Solve for x
    x = 4,746,598,385.62/77,983.56
  6. Step 6: Final answer
    x = 60,866.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.