Home / 77,931.87-107,543.82-43,940.07

Finding the Fourth Proportional to 77,931.87, 107,543.82 and 43,940.07

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Solution

The fourth proportional to 77,931.87, 107,543.82 and 43,940.07 is: 60,636.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,931.87 : 107,543.82 = 43,940.07 : x
  2. Step 2: Convert to fraction form
    77,931.87/107,543.82 = 43,940.07/x
  3. Step 3: Cross multiply
    77,931.87x = 107,543.82 × 43,940.07
  4. Step 4: Simplify right side
    77,931.87x = 4,725,482,896.48
  5. Step 5: Solve for x
    x = 4,725,482,896.48/77,931.87
  6. Step 6: Final answer
    x = 60,636.08

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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.