Home / 77,748.66-107,295.30-43,758.36

Finding the Fourth Proportional to 77,748.66, 107,295.30 and 43,758.36

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Solution

The fourth proportional to 77,748.66, 107,295.30 and 43,758.36 is: 60,387.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,748.66 : 107,295.30 = 43,758.36 : x
  2. Step 2: Convert to fraction form
    77,748.66/107,295.30 = 43,758.36/x
  3. Step 3: Cross multiply
    77,748.66x = 107,295.30 × 43,758.36
  4. Step 4: Simplify right side
    77,748.66x = 4,695,066,363.71
  5. Step 5: Solve for x
    x = 4,695,066,363.71/77,748.66
  6. Step 6: Final answer
    x = 60,387.75

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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.