Home / 66,539.40-91,824.18-36,731.40

Finding the Fourth Proportional to 66,539.40, 91,824.18 and 36,731.40

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Solution

The fourth proportional to 66,539.40, 91,824.18 and 36,731.40 is: 50,689.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,539.40 : 91,824.18 = 36,731.40 : x
  2. Step 2: Convert to fraction form
    66,539.40/91,824.18 = 36,731.40/x
  3. Step 3: Cross multiply
    66,539.40x = 91,824.18 × 36,731.40
  4. Step 4: Simplify right side
    66,539.40x = 3,372,830,685.25
  5. Step 5: Solve for x
    x = 3,372,830,685.25/66,539.40
  6. Step 6: Final answer
    x = 50,689.23

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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.