Home / 56,987.48-85,480.26-21,934.72

Finding the Fourth Proportional to 56,987.48, 85,480.26 and 21,934.72

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Solution

The fourth proportional to 56,987.48, 85,480.26 and 21,934.72 is: 32,901.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,987.48 : 85,480.26 = 21,934.72 : x
  2. Step 2: Convert to fraction form
    56,987.48/85,480.26 = 21,934.72/x
  3. Step 3: Cross multiply
    56,987.48x = 85,480.26 × 21,934.72
  4. Step 4: Simplify right side
    56,987.48x = 1,874,985,568.63
  5. Step 5: Solve for x
    x = 1,874,985,568.63/56,987.48
  6. Step 6: Final answer
    x = 32,901.71

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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.