Home / 61,089.12-91,656.36-19,539.36

Finding the Fourth Proportional to 61,089.12, 91,656.36 and 19,539.36

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Solution

The fourth proportional to 61,089.12, 91,656.36 and 19,539.36 is: 29,316.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,089.12 : 91,656.36 = 19,539.36 : x
  2. Step 2: Convert to fraction form
    61,089.12/91,656.36 = 19,539.36/x
  3. Step 3: Cross multiply
    61,089.12x = 91,656.36 × 19,539.36
  4. Step 4: Simplify right side
    61,089.12x = 1,790,906,614.33
  5. Step 5: Solve for x
    x = 1,790,906,614.33/61,089.12
  6. Step 6: Final answer
    x = 29,316.29

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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.