Home / 66,116.20-91,275.94-50,975.64

Finding the Fourth Proportional to 66,116.20, 91,275.94 and 50,975.64

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Solution

The fourth proportional to 66,116.20, 91,275.94 and 50,975.64 is: 70,373.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,116.20 : 91,275.94 = 50,975.64 : x
  2. Step 2: Convert to fraction form
    66,116.20/91,275.94 = 50,975.64/x
  3. Step 3: Cross multiply
    66,116.20x = 91,275.94 × 50,975.64
  4. Step 4: Simplify right side
    66,116.20x = 4,652,849,458.10
  5. Step 5: Solve for x
    x = 4,652,849,458.10/66,116.20
  6. Step 6: Final answer
    x = 70,373.82

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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.