Home / 86,226.82-118,990.56-47,985.75

Finding the Fourth Proportional to 86,226.82, 118,990.56 and 47,985.75

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Solution

The fourth proportional to 86,226.82, 118,990.56 and 47,985.75 is: 66,218.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,226.82 : 118,990.56 = 47,985.75 : x
  2. Step 2: Convert to fraction form
    86,226.82/118,990.56 = 47,985.75/x
  3. Step 3: Cross multiply
    86,226.82x = 118,990.56 × 47,985.75
  4. Step 4: Simplify right side
    86,226.82x = 5,709,851,264.52
  5. Step 5: Solve for x
    x = 5,709,851,264.52/86,226.82
  6. Step 6: Final answer
    x = 66,218.97

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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.