Home / 63,145.72-94,686.90-21,010.96

Finding the Fourth Proportional to 63,145.72, 94,686.90 and 21,010.96

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Solution

The fourth proportional to 63,145.72, 94,686.90 and 21,010.96 is: 31,505.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,145.72 : 94,686.90 = 21,010.96 : x
  2. Step 2: Convert to fraction form
    63,145.72/94,686.90 = 21,010.96/x
  3. Step 3: Cross multiply
    63,145.72x = 94,686.90 × 21,010.96
  4. Step 4: Simplify right side
    63,145.72x = 1,989,462,668.42
  5. Step 5: Solve for x
    x = 1,989,462,668.42/63,145.72
  6. Step 6: Final answer
    x = 31,505.90

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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.