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Finding the Fourth Proportional to 77,150.58, 115,769.58 and 30,436.26

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Solution

The fourth proportional to 77,150.58, 115,769.58 and 30,436.26 is: 45,671.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,150.58 : 115,769.58 = 30,436.26 : x
  2. Step 2: Convert to fraction form
    77,150.58/115,769.58 = 30,436.26/x
  3. Step 3: Cross multiply
    77,150.58x = 115,769.58 × 30,436.26
  4. Step 4: Simplify right side
    77,150.58x = 3,523,593,036.97
  5. Step 5: Solve for x
    x = 3,523,593,036.97/77,150.58
  6. Step 6: Final answer
    x = 45,671.63

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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.