Home / 56,971.14-85,407.49-21,886.80

Finding the Fourth Proportional to 56,971.14, 85,407.49 and 21,886.80

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Solution

The fourth proportional to 56,971.14, 85,407.49 and 21,886.80 is: 32,811.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,971.14 : 85,407.49 = 21,886.80 : x
  2. Step 2: Convert to fraction form
    56,971.14/85,407.49 = 21,886.80/x
  3. Step 3: Cross multiply
    56,971.14x = 85,407.49 × 21,886.80
  4. Step 4: Simplify right side
    56,971.14x = 1,869,296,652.13
  5. Step 5: Solve for x
    x = 1,869,296,652.13/56,971.14
  6. Step 6: Final answer
    x = 32,811.29

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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.