Home / 78,961.17-108,967.95-43,153.38

Finding the Fourth Proportional to 78,961.17, 108,967.95 and 43,153.38

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Solution

The fourth proportional to 78,961.17, 108,967.95 and 43,153.38 is: 59,552.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,961.17 : 108,967.95 = 43,153.38 : x
  2. Step 2: Convert to fraction form
    78,961.17/108,967.95 = 43,153.38/x
  3. Step 3: Cross multiply
    78,961.17x = 108,967.95 × 43,153.38
  4. Step 4: Simplify right side
    78,961.17x = 4,702,335,354.17
  5. Step 5: Solve for x
    x = 4,702,335,354.17/78,961.17
  6. Step 6: Final answer
    x = 59,552.50

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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.