Home / 61,680.12-85,118.50-33,385.76

Finding the Fourth Proportional to 61,680.12, 85,118.50 and 33,385.76

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Solution

The fourth proportional to 61,680.12, 85,118.50 and 33,385.76 is: 46,072.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,680.12 : 85,118.50 = 33,385.76 : x
  2. Step 2: Convert to fraction form
    61,680.12/85,118.50 = 33,385.76/x
  3. Step 3: Cross multiply
    61,680.12x = 85,118.50 × 33,385.76
  4. Step 4: Simplify right side
    61,680.12x = 2,841,745,812.56
  5. Step 5: Solve for x
    x = 2,841,745,812.56/61,680.12
  6. Step 6: Final answer
    x = 46,072.31

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1.5x scale

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.