Home / 57,868.90-86,803.35-28,305.70

Finding the Fourth Proportional to 57,868.90, 86,803.35 and 28,305.70

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Solution

The fourth proportional to 57,868.90, 86,803.35 and 28,305.70 is: 42,458.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,868.90 : 86,803.35 = 28,305.70 : x
  2. Step 2: Convert to fraction form
    57,868.90/86,803.35 = 28,305.70/x
  3. Step 3: Cross multiply
    57,868.90x = 86,803.35 × 28,305.70
  4. Step 4: Simplify right side
    57,868.90x = 2,457,029,584.10
  5. Step 5: Solve for x
    x = 2,457,029,584.10/57,868.90
  6. Step 6: Final answer
    x = 42,458.55

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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.