Home / 77,756.60-107,289.06-43,760.56

Finding the Fourth Proportional to 77,756.60, 107,289.06 and 43,760.56

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Solution

The fourth proportional to 77,756.60, 107,289.06 and 43,760.56 is: 60,381.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,756.60 : 107,289.06 = 43,760.56 : x
  2. Step 2: Convert to fraction form
    77,756.60/107,289.06 = 43,760.56/x
  3. Step 3: Cross multiply
    77,756.60x = 107,289.06 × 43,760.56
  4. Step 4: Simplify right side
    77,756.60x = 4,695,029,347.47
  5. Step 5: Solve for x
    x = 4,695,029,347.47/77,756.60
  6. Step 6: Final answer
    x = 60,381.10

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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.