Home / 61,715.48-85,167.20-33,421.16

Finding the Fourth Proportional to 61,715.48, 85,167.20 and 33,421.16

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Solution

The fourth proportional to 61,715.48, 85,167.20 and 33,421.16 is: 46,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,715.48 : 85,167.20 = 33,421.16 : x
  2. Step 2: Convert to fraction form
    61,715.48/85,167.20 = 33,421.16/x
  3. Step 3: Cross multiply
    61,715.48x = 85,167.20 × 33,421.16
  4. Step 4: Simplify right side
    61,715.48x = 2,846,386,450.85
  5. Step 5: Solve for x
    x = 2,846,386,450.85/61,715.48
  6. Step 6: Final answer
    x = 46,121.11

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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.