Home / 64,748.90-97,123.20-20,379.53

Finding the Fourth Proportional to 64,748.90, 97,123.20 and 20,379.53

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Solution

The fourth proportional to 64,748.90, 97,123.20 and 20,379.53 is: 30,569.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,748.90 : 97,123.20 = 20,379.53 : x
  2. Step 2: Convert to fraction form
    64,748.90/97,123.20 = 20,379.53/x
  3. Step 3: Cross multiply
    64,748.90x = 97,123.20 × 20,379.53
  4. Step 4: Simplify right side
    64,748.90x = 1,979,324,682.48
  5. Step 5: Solve for x
    x = 1,979,324,682.48/64,748.90
  6. Step 6: Final answer
    x = 30,569.24

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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.