Home / 77,707.10-116,343.62-42,040.88

Finding the Fourth Proportional to 77,707.10, 116,343.62 and 42,040.88

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Solution

The fourth proportional to 77,707.10, 116,343.62 and 42,040.88 is: 62,943.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,707.10 : 116,343.62 = 42,040.88 : x
  2. Step 2: Convert to fraction form
    77,707.10/116,343.62 = 42,040.88/x
  3. Step 3: Cross multiply
    77,707.10x = 116,343.62 × 42,040.88
  4. Step 4: Simplify right side
    77,707.10x = 4,891,188,167.19
  5. Step 5: Solve for x
    x = 4,891,188,167.19/77,707.10
  6. Step 6: Final answer
    x = 62,943.90

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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.