Home / 76,326.57-105,382.62-47,657.43

Finding the Fourth Proportional to 76,326.57, 105,382.62 and 47,657.43

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Solution

The fourth proportional to 76,326.57, 105,382.62 and 47,657.43 is: 65,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,326.57 : 105,382.62 = 47,657.43 : x
  2. Step 2: Convert to fraction form
    76,326.57/105,382.62 = 47,657.43/x
  3. Step 3: Cross multiply
    76,326.57x = 105,382.62 × 47,657.43
  4. Step 4: Simplify right side
    76,326.57x = 5,022,264,835.87
  5. Step 5: Solve for x
    x = 5,022,264,835.87/76,326.57
  6. Step 6: Final answer
    x = 65,799.69

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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.