Home / 77,451.10-106,882.56-43,454.89

Finding the Fourth Proportional to 77,451.10, 106,882.56 and 43,454.89

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Solution

The fourth proportional to 77,451.10, 106,882.56 and 43,454.89 is: 59,967.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,451.10 : 106,882.56 = 43,454.89 : x
  2. Step 2: Convert to fraction form
    77,451.10/106,882.56 = 43,454.89/x
  3. Step 3: Cross multiply
    77,451.10x = 106,882.56 × 43,454.89
  4. Step 4: Simplify right side
    77,451.10x = 4,644,569,887.72
  5. Step 5: Solve for x
    x = 4,644,569,887.72/77,451.10
  6. Step 6: Final answer
    x = 59,967.77

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1.5x scale

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.