Home / 99,549.09-137,376.68-57,114.27

Finding the Fourth Proportional to 99,549.09, 137,376.68 and 57,114.27

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Solution

The fourth proportional to 99,549.09, 137,376.68 and 57,114.27 is: 78,817.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,549.09 : 137,376.68 = 57,114.27 : x
  2. Step 2: Convert to fraction form
    99,549.09/137,376.68 = 57,114.27/x
  3. Step 3: Cross multiply
    99,549.09x = 137,376.68 × 57,114.27
  4. Step 4: Simplify right side
    99,549.09x = 7,846,168,507.65
  5. Step 5: Solve for x
    x = 7,846,168,507.65/99,549.09
  6. Step 6: Final answer
    x = 78,817.08

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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.