Home / 66,588.85-91,868.70-39,359.19

Finding the Fourth Proportional to 66,588.85, 91,868.70 and 39,359.19

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Solution

The fourth proportional to 66,588.85, 91,868.70 and 39,359.19 is: 54,301.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,588.85 : 91,868.70 = 39,359.19 : x
  2. Step 2: Convert to fraction form
    66,588.85/91,868.70 = 39,359.19/x
  3. Step 3: Cross multiply
    66,588.85x = 91,868.70 × 39,359.19
  4. Step 4: Simplify right side
    66,588.85x = 3,615,877,618.35
  5. Step 5: Solve for x
    x = 3,615,877,618.35/66,588.85
  6. Step 6: Final answer
    x = 54,301.55

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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.