Home / 86,184.12-118,932.65-47,943.21

Finding the Fourth Proportional to 86,184.12, 118,932.65 and 47,943.21

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Solution

The fourth proportional to 86,184.12, 118,932.65 and 47,943.21 is: 66,160.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,184.12 : 118,932.65 = 47,943.21 : x
  2. Step 2: Convert to fraction form
    86,184.12/118,932.65 = 47,943.21/x
  3. Step 3: Cross multiply
    86,184.12x = 118,932.65 × 47,943.21
  4. Step 4: Simplify right side
    86,184.12x = 5,702,012,180.43
  5. Step 5: Solve for x
    x = 5,702,012,180.43/86,184.12
  6. Step 6: Final answer
    x = 66,160.83

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1.5x scale

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.