Home / 66,646.87-91,972.47-36,432.20

Finding the Fourth Proportional to 66,646.87, 91,972.47 and 36,432.20

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Solution

The fourth proportional to 66,646.87, 91,972.47 and 36,432.20 is: 50,276.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,646.87 : 91,972.47 = 36,432.20 : x
  2. Step 2: Convert to fraction form
    66,646.87/91,972.47 = 36,432.20/x
  3. Step 3: Cross multiply
    66,646.87x = 91,972.47 × 36,432.20
  4. Step 4: Simplify right side
    66,646.87x = 3,350,759,788.09
  5. Step 5: Solve for x
    x = 3,350,759,788.09/66,646.87
  6. Step 6: Final answer
    x = 50,276.33

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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.