Home / 99,522.63-137,353.80-57,080.25

Finding the Fourth Proportional to 99,522.63, 137,353.80 and 57,080.25

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Solution

The fourth proportional to 99,522.63, 137,353.80 and 57,080.25 is: 78,777.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,522.63 : 137,353.80 = 57,080.25 : x
  2. Step 2: Convert to fraction form
    99,522.63/137,353.80 = 57,080.25/x
  3. Step 3: Cross multiply
    99,522.63x = 137,353.80 × 57,080.25
  4. Step 4: Simplify right side
    99,522.63x = 7,840,189,242.45
  5. Step 5: Solve for x
    x = 7,840,189,242.45/99,522.63
  6. Step 6: Final answer
    x = 78,777.95

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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.