Home / 74,268.50-111,123.75-52,125.08

Finding the Fourth Proportional to 74,268.50, 111,123.75 and 52,125.08

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Solution

The fourth proportional to 74,268.50, 111,123.75 and 52,125.08 is: 77,991.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,268.50 : 111,123.75 = 52,125.08 : x
  2. Step 2: Convert to fraction form
    74,268.50/111,123.75 = 52,125.08/x
  3. Step 3: Cross multiply
    74,268.50x = 111,123.75 × 52,125.08
  4. Step 4: Simplify right side
    74,268.50x = 5,792,334,358.65
  5. Step 5: Solve for x
    x = 5,792,334,358.65/74,268.50
  6. Step 6: Final answer
    x = 77,991.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.