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Finding the Fourth Proportional to 66,116.16, 91,275.84 and 50,975.76

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Solution

The fourth proportional to 66,116.16, 91,275.84 and 50,975.76 is: 70,373.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,116.16 : 91,275.84 = 50,975.76 : x
  2. Step 2: Convert to fraction form
    66,116.16/91,275.84 = 50,975.76/x
  3. Step 3: Cross multiply
    66,116.16x = 91,275.84 × 50,975.76
  4. Step 4: Simplify right side
    66,116.16x = 4,652,855,313.64
  5. Step 5: Solve for x
    x = 4,652,855,313.64/66,116.16
  6. Step 6: Final answer
    x = 70,373.95

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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.