Home / 57,951.10-86,937.45-18,519.40

Finding the Fourth Proportional to 57,951.10, 86,937.45 and 18,519.40

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Solution

The fourth proportional to 57,951.10, 86,937.45 and 18,519.40 is: 27,782.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,951.10 : 86,937.45 = 18,519.40 : x
  2. Step 2: Convert to fraction form
    57,951.10/86,937.45 = 18,519.40/x
  3. Step 3: Cross multiply
    57,951.10x = 86,937.45 × 18,519.40
  4. Step 4: Simplify right side
    57,951.10x = 1,610,029,411.53
  5. Step 5: Solve for x
    x = 1,610,029,411.53/57,951.10
  6. Step 6: Final answer
    x = 27,782.55

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1.5x scale

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.