Home / 66,287.28-91,478.39-36,074.55

Finding the Fourth Proportional to 66,287.28, 91,478.39 and 36,074.55

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Solution

The fourth proportional to 66,287.28, 91,478.39 and 36,074.55 is: 49,783.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,287.28 : 91,478.39 = 36,074.55 : x
  2. Step 2: Convert to fraction form
    66,287.28/91,478.39 = 36,074.55/x
  3. Step 3: Cross multiply
    66,287.28x = 91,478.39 × 36,074.55
  4. Step 4: Simplify right side
    66,287.28x = 3,300,041,573.60
  5. Step 5: Solve for x
    x = 3,300,041,573.60/66,287.28
  6. Step 6: Final answer
    x = 49,783.93

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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.