Home / 53,436.12-79,986.51-35,631.78

Finding the Fourth Proportional to 53,436.12, 79,986.51 and 35,631.78

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Solution

The fourth proportional to 53,436.12, 79,986.51 and 35,631.78 is: 53,335.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,436.12 : 79,986.51 = 35,631.78 : x
  2. Step 2: Convert to fraction form
    53,436.12/79,986.51 = 35,631.78/x
  3. Step 3: Cross multiply
    53,436.12x = 79,986.51 × 35,631.78
  4. Step 4: Simplify right side
    53,436.12x = 2,850,061,727.29
  5. Step 5: Solve for x
    x = 2,850,061,727.29/53,436.12
  6. Step 6: Final answer
    x = 53,335.87

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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.