Home / 52,781.12-72,795.48-40,876.64

Finding the Fourth Proportional to 52,781.12, 72,795.48 and 40,876.64

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Solution

The fourth proportional to 52,781.12, 72,795.48 and 40,876.64 is: 56,376.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,781.12 : 72,795.48 = 40,876.64 : x
  2. Step 2: Convert to fraction form
    52,781.12/72,795.48 = 40,876.64/x
  3. Step 3: Cross multiply
    52,781.12x = 72,795.48 × 40,876.64
  4. Step 4: Simplify right side
    52,781.12x = 2,975,634,629.59
  5. Step 5: Solve for x
    x = 2,975,634,629.59/52,781.12
  6. Step 6: Final answer
    x = 56,376.88

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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.