Home / 66,109.79-91,233.47-35,897.07

Finding the Fourth Proportional to 66,109.79, 91,233.47 and 35,897.07

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Solution

The fourth proportional to 66,109.79, 91,233.47 and 35,897.07 is: 49,539.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,109.79 : 91,233.47 = 35,897.07 : x
  2. Step 2: Convert to fraction form
    66,109.79/91,233.47 = 35,897.07/x
  3. Step 3: Cross multiply
    66,109.79x = 91,233.47 × 35,897.07
  4. Step 4: Simplify right side
    66,109.79x = 3,275,014,690.80
  5. Step 5: Solve for x
    x = 3,275,014,690.80/66,109.79
  6. Step 6: Final answer
    x = 49,539.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.