Home / 66,082.40-99,618.79-61,683.16

Finding the Fourth Proportional to 66,082.40, 99,618.79 and 61,683.16

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Solution

The fourth proportional to 66,082.40, 99,618.79 and 61,683.16 is: 92,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,082.40 : 99,618.79 = 61,683.16 : x
  2. Step 2: Convert to fraction form
    66,082.40/99,618.79 = 61,683.16/x
  3. Step 3: Cross multiply
    66,082.40x = 99,618.79 × 61,683.16
  4. Step 4: Simplify right side
    66,082.40x = 6,144,801,762.58
  5. Step 5: Solve for x
    x = 6,144,801,762.58/66,082.40
  6. Step 6: Final answer
    x = 92,986.96

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.