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Finding the Fourth Proportional to 63,720, 95,590.94 and 19,351.24

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Solution

The fourth proportional to 63,720, 95,590.94 and 19,351.24 is: 29,030.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,720 : 95,590.94 = 19,351.24 : x
  2. Step 2: Convert to fraction form
    63,720/95,590.94 = 19,351.24/x
  3. Step 3: Cross multiply
    63,720x = 95,590.94 × 19,351.24
  4. Step 4: Simplify right side
    63,720x = 1,849,802,886.03
  5. Step 5: Solve for x
    x = 1,849,802,886.03/63,720
  6. Step 6: Final answer
    x = 29,030.18

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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.