Home / 78,134.13-107,818.70-44,145.56

Finding the Fourth Proportional to 78,134.13, 107,818.70 and 44,145.56

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Solution

The fourth proportional to 78,134.13, 107,818.70 and 44,145.56 is: 60,917.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,134.13 : 107,818.70 = 44,145.56 : x
  2. Step 2: Convert to fraction form
    78,134.13/107,818.70 = 44,145.56/x
  3. Step 3: Cross multiply
    78,134.13x = 107,818.70 × 44,145.56
  4. Step 4: Simplify right side
    78,134.13x = 4,759,716,938.79
  5. Step 5: Solve for x
    x = 4,759,716,938.79/78,134.13
  6. Step 6: Final answer
    x = 60,917.26

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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.