Home / 57,117.60-85,663.22-21,582.72

Finding the Fourth Proportional to 57,117.60, 85,663.22 and 21,582.72

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Solution

The fourth proportional to 57,117.60, 85,663.22 and 21,582.72 is: 32,369.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,117.60 : 85,663.22 = 21,582.72 : x
  2. Step 2: Convert to fraction form
    57,117.60/85,663.22 = 21,582.72/x
  3. Step 3: Cross multiply
    57,117.60x = 85,663.22 × 21,582.72
  4. Step 4: Simplify right side
    57,117.60x = 1,848,845,183.64
  5. Step 5: Solve for x
    x = 1,848,845,183.64/57,117.60
  6. Step 6: Final answer
    x = 32,369.10

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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.