Home / 77,849.10-107,442.18-43,864.20

Finding the Fourth Proportional to 77,849.10, 107,442.18 and 43,864.20

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Solution

The fourth proportional to 77,849.10, 107,442.18 and 43,864.20 is: 60,538.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,849.10 : 107,442.18 = 43,864.20 : x
  2. Step 2: Convert to fraction form
    77,849.10/107,442.18 = 43,864.20/x
  3. Step 3: Cross multiply
    77,849.10x = 107,442.18 × 43,864.20
  4. Step 4: Simplify right side
    77,849.10x = 4,712,865,271.96
  5. Step 5: Solve for x
    x = 4,712,865,271.96/77,849.10
  6. Step 6: Final answer
    x = 60,538.47

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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.