Home / 57,878.32-86,758.28-39,160.33

Finding the Fourth Proportional to 57,878.32, 86,758.28 and 39,160.33

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Solution

The fourth proportional to 57,878.32, 86,758.28 and 39,160.33 is: 58,700.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,878.32 : 86,758.28 = 39,160.33 : x
  2. Step 2: Convert to fraction form
    57,878.32/86,758.28 = 39,160.33/x
  3. Step 3: Cross multiply
    57,878.32x = 86,758.28 × 39,160.33
  4. Step 4: Simplify right side
    57,878.32x = 3,397,483,097.20
  5. Step 5: Solve for x
    x = 3,397,483,097.20/57,878.32
  6. Step 6: Final answer
    x = 58,700.44

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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.