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Finding the Fourth Proportional to 77,252.53, 115,798.90 and 43,900.78

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Solution

The fourth proportional to 77,252.53, 115,798.90 and 43,900.78 is: 65,805.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,252.53 : 115,798.90 = 43,900.78 : x
  2. Step 2: Convert to fraction form
    77,252.53/115,798.90 = 43,900.78/x
  3. Step 3: Cross multiply
    77,252.53x = 115,798.90 × 43,900.78
  4. Step 4: Simplify right side
    77,252.53x = 5,083,662,033.14
  5. Step 5: Solve for x
    x = 5,083,662,033.14/77,252.53
  6. Step 6: Final answer
    x = 65,805.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.