Home / 76,283.42-105,233.72-66,197.70

Finding the Fourth Proportional to 76,283.42, 105,233.72 and 66,197.70

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Solution

The fourth proportional to 76,283.42, 105,233.72 and 66,197.70 is: 91,320.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,283.42 : 105,233.72 = 66,197.70 : x
  2. Step 2: Convert to fraction form
    76,283.42/105,233.72 = 66,197.70/x
  3. Step 3: Cross multiply
    76,283.42x = 105,233.72 × 66,197.70
  4. Step 4: Simplify right side
    76,283.42x = 6,966,229,895.46
  5. Step 5: Solve for x
    x = 6,966,229,895.46/76,283.42
  6. Step 6: Final answer
    x = 91,320.37

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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.