Home / 61,166.16-84,427.20-39,948.66

Finding the Fourth Proportional to 61,166.16, 84,427.20 and 39,948.66

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Solution

The fourth proportional to 61,166.16, 84,427.20 and 39,948.66 is: 55,140.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,166.16 : 84,427.20 = 39,948.66 : x
  2. Step 2: Convert to fraction form
    61,166.16/84,427.20 = 39,948.66/x
  3. Step 3: Cross multiply
    61,166.16x = 84,427.20 × 39,948.66
  4. Step 4: Simplify right side
    61,166.16x = 3,372,753,507.55
  5. Step 5: Solve for x
    x = 3,372,753,507.55/61,166.16
  6. Step 6: Final answer
    x = 55,140.84

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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.