Home / 75,818.61-113,635.62-53,638.38

Finding the Fourth Proportional to 75,818.61, 113,635.62 and 53,638.38

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Solution

The fourth proportional to 75,818.61, 113,635.62 and 53,638.38 is: 80,392.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,818.61 : 113,635.62 = 53,638.38 : x
  2. Step 2: Convert to fraction form
    75,818.61/113,635.62 = 53,638.38/x
  3. Step 3: Cross multiply
    75,818.61x = 113,635.62 × 53,638.38
  4. Step 4: Simplify right side
    75,818.61x = 6,095,230,567.10
  5. Step 5: Solve for x
    x = 6,095,230,567.10/75,818.61
  6. Step 6: Final answer
    x = 80,392.28

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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.