Home / 66,953.28-92,403.72-38,658.92

Finding the Fourth Proportional to 66,953.28, 92,403.72 and 38,658.92

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Solution

The fourth proportional to 66,953.28, 92,403.72 and 38,658.92 is: 53,354.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,953.28 : 92,403.72 = 38,658.92 : x
  2. Step 2: Convert to fraction form
    66,953.28/92,403.72 = 38,658.92/x
  3. Step 3: Cross multiply
    66,953.28x = 92,403.72 × 38,658.92
  4. Step 4: Simplify right side
    66,953.28x = 3,572,228,019.18
  5. Step 5: Solve for x
    x = 3,572,228,019.18/66,953.28
  6. Step 6: Final answer
    x = 53,354.04

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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.