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Finding the Fourth Proportional to 57,328.93, 86,027.23 and 21,820.15

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Solution

The fourth proportional to 57,328.93, 86,027.23 and 21,820.15 is: 32,743.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,328.93 : 86,027.23 = 21,820.15 : x
  2. Step 2: Convert to fraction form
    57,328.93/86,027.23 = 21,820.15/x
  3. Step 3: Cross multiply
    57,328.93x = 86,027.23 × 21,820.15
  4. Step 4: Simplify right side
    57,328.93x = 1,877,127,062.68
  5. Step 5: Solve for x
    x = 1,877,127,062.68/57,328.93
  6. Step 6: Final answer
    x = 32,743.10

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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.