Home / 56,756.89-85,116.10-19,306.95

Finding the Fourth Proportional to 56,756.89, 85,116.10 and 19,306.95

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Solution

The fourth proportional to 56,756.89, 85,116.10 and 19,306.95 is: 28,953.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,756.89 : 85,116.10 = 19,306.95 : x
  2. Step 2: Convert to fraction form
    56,756.89/85,116.10 = 19,306.95/x
  3. Step 3: Cross multiply
    56,756.89x = 85,116.10 × 19,306.95
  4. Step 4: Simplify right side
    56,756.89x = 1,643,332,286.90
  5. Step 5: Solve for x
    x = 1,643,332,286.90/56,756.89
  6. Step 6: Final answer
    x = 28,953.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.