Home / 67,205.16-92,728.24-38,894.45

Finding the Fourth Proportional to 67,205.16, 92,728.24 and 38,894.45

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Solution

The fourth proportional to 67,205.16, 92,728.24 and 38,894.45 is: 53,665.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,205.16 : 92,728.24 = 38,894.45 : x
  2. Step 2: Convert to fraction form
    67,205.16/92,728.24 = 38,894.45/x
  3. Step 3: Cross multiply
    67,205.16x = 92,728.24 × 38,894.45
  4. Step 4: Simplify right side
    67,205.16x = 3,606,613,552.17
  5. Step 5: Solve for x
    x = 3,606,613,552.17/67,205.16
  6. Step 6: Final answer
    x = 53,665.72

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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.