Home / 57,210.93-85,822.08-21,197.02

Finding the Fourth Proportional to 57,210.93, 85,822.08 and 21,197.02

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Solution

The fourth proportional to 57,210.93, 85,822.08 and 21,197.02 is: 31,797.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,210.93 : 85,822.08 = 21,197.02 : x
  2. Step 2: Convert to fraction form
    57,210.93/85,822.08 = 21,197.02/x
  3. Step 3: Cross multiply
    57,210.93x = 85,822.08 × 21,197.02
  4. Step 4: Simplify right side
    57,210.93x = 1,819,172,346.20
  5. Step 5: Solve for x
    x = 1,819,172,346.20/57,210.93
  6. Step 6: Final answer
    x = 31,797.64

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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.