Home / 77,729.60-107,263.76-45,908.72

Finding the Fourth Proportional to 77,729.60, 107,263.76 and 45,908.72

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Solution

The fourth proportional to 77,729.60, 107,263.76 and 45,908.72 is: 63,352.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,729.60 : 107,263.76 = 45,908.72 : x
  2. Step 2: Convert to fraction form
    77,729.60/107,263.76 = 45,908.72/x
  3. Step 3: Cross multiply
    77,729.60x = 107,263.76 × 45,908.72
  4. Step 4: Simplify right side
    77,729.60x = 4,924,341,923.99
  5. Step 5: Solve for x
    x = 4,924,341,923.99/77,729.60
  6. Step 6: Final answer
    x = 63,352.21

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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.