Home / 66,817.98-92,206.40-38,139.12

Finding the Fourth Proportional to 66,817.98, 92,206.40 and 38,139.12

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Solution

The fourth proportional to 66,817.98, 92,206.40 and 38,139.12 is: 52,630.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,817.98 : 92,206.40 = 38,139.12 : x
  2. Step 2: Convert to fraction form
    66,817.98/92,206.40 = 38,139.12/x
  3. Step 3: Cross multiply
    66,817.98x = 92,206.40 × 38,139.12
  4. Step 4: Simplify right side
    66,817.98x = 3,516,670,493.34
  5. Step 5: Solve for x
    x = 3,516,670,493.34/66,817.98
  6. Step 6: Final answer
    x = 52,630.61

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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.