Home / 75,666.18-113,420.43-42,337.38

Finding the Fourth Proportional to 75,666.18, 113,420.43 and 42,337.38

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Solution

The fourth proportional to 75,666.18, 113,420.43 and 42,337.38 is: 63,461.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,666.18 : 113,420.43 = 42,337.38 : x
  2. Step 2: Convert to fraction form
    75,666.18/113,420.43 = 42,337.38/x
  3. Step 3: Cross multiply
    75,666.18x = 113,420.43 × 42,337.38
  4. Step 4: Simplify right side
    75,666.18x = 4,801,923,844.67
  5. Step 5: Solve for x
    x = 4,801,923,844.67/75,666.18
  6. Step 6: Final answer
    x = 63,461.96

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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.