Home / 61,142.08-91,726.28-19,021.36

Finding the Fourth Proportional to 61,142.08, 91,726.28 and 19,021.36

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Solution

The fourth proportional to 61,142.08, 91,726.28 and 19,021.36 is: 28,536.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,142.08 : 91,726.28 = 19,021.36 : x
  2. Step 2: Convert to fraction form
    61,142.08/91,726.28 = 19,021.36/x
  3. Step 3: Cross multiply
    61,142.08x = 91,726.28 × 19,021.36
  4. Step 4: Simplify right side
    61,142.08x = 1,744,758,593.34
  5. Step 5: Solve for x
    x = 1,744,758,593.34/61,142.08
  6. Step 6: Final answer
    x = 28,536.13

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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.