Home / 77,931.86-107,543.80-43,940.04

Finding the Fourth Proportional to 77,931.86, 107,543.80 and 43,940.04

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Solution

The fourth proportional to 77,931.86, 107,543.80 and 43,940.04 is: 60,636.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,931.86 : 107,543.80 = 43,940.04 : x
  2. Step 2: Convert to fraction form
    77,931.86/107,543.80 = 43,940.04/x
  3. Step 3: Cross multiply
    77,931.86x = 107,543.80 × 43,940.04
  4. Step 4: Simplify right side
    77,931.86x = 4,725,478,873.75
  5. Step 5: Solve for x
    x = 4,725,478,873.75/77,931.86
  6. Step 6: Final answer
    x = 60,636.03

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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.