Home / 57,686.16-86,536.44-28,079.04

Finding the Fourth Proportional to 57,686.16, 86,536.44 and 28,079.04

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Solution

The fourth proportional to 57,686.16, 86,536.44 and 28,079.04 is: 42,122.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,686.16 : 86,536.44 = 28,079.04 : x
  2. Step 2: Convert to fraction form
    57,686.16/86,536.44 = 28,079.04/x
  3. Step 3: Cross multiply
    57,686.16x = 86,536.44 × 28,079.04
  4. Step 4: Simplify right side
    57,686.16x = 2,429,860,160.22
  5. Step 5: Solve for x
    x = 2,429,860,160.22/57,686.16
  6. Step 6: Final answer
    x = 42,122.06

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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.