Home / 57,001.52-85,461.24-21,457.28

Finding the Fourth Proportional to 57,001.52, 85,461.24 and 21,457.28

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Solution

The fourth proportional to 57,001.52, 85,461.24 and 21,457.28 is: 32,170.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,001.52 : 85,461.24 = 21,457.28 : x
  2. Step 2: Convert to fraction form
    57,001.52/85,461.24 = 21,457.28/x
  3. Step 3: Cross multiply
    57,001.52x = 85,461.24 × 21,457.28
  4. Step 4: Simplify right side
    57,001.52x = 1,833,765,755.83
  5. Step 5: Solve for x
    x = 1,833,765,755.83/57,001.52
  6. Step 6: Final answer
    x = 32,170.47

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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.