Home / 77,072.32-115,538.42-29,657.17

Finding the Fourth Proportional to 77,072.32, 115,538.42 and 29,657.17

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Solution

The fourth proportional to 77,072.32, 115,538.42 and 29,657.17 is: 44,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,072.32 : 115,538.42 = 29,657.17 : x
  2. Step 2: Convert to fraction form
    77,072.32/115,538.42 = 29,657.17/x
  3. Step 3: Cross multiply
    77,072.32x = 115,538.42 × 29,657.17
  4. Step 4: Simplify right side
    77,072.32x = 3,426,542,563.47
  5. Step 5: Solve for x
    x = 3,426,542,563.47/77,072.32
  6. Step 6: Final answer
    x = 44,458.80

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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.