Home / 66,819.72-92,208.81-38,140.86

Finding the Fourth Proportional to 66,819.72, 92,208.81 and 38,140.86

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Solution

The fourth proportional to 66,819.72, 92,208.81 and 38,140.86 is: 52,633.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,819.72 : 92,208.81 = 38,140.86 : x
  2. Step 2: Convert to fraction form
    66,819.72/92,208.81 = 38,140.86/x
  3. Step 3: Cross multiply
    66,819.72x = 92,208.81 × 38,140.86
  4. Step 4: Simplify right side
    66,819.72x = 3,516,923,312.98
  5. Step 5: Solve for x
    x = 3,516,923,312.98/66,819.72
  6. Step 6: Final answer
    x = 52,633.01

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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.