Home / 74,116.76-102,441.12-65,558.30

Finding the Fourth Proportional to 74,116.76, 102,441.12 and 65,558.30

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Solution

The fourth proportional to 74,116.76, 102,441.12 and 65,558.30 is: 90,611.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,116.76 : 102,441.12 = 65,558.30 : x
  2. Step 2: Convert to fraction form
    74,116.76/102,441.12 = 65,558.30/x
  3. Step 3: Cross multiply
    74,116.76x = 102,441.12 × 65,558.30
  4. Step 4: Simplify right side
    74,116.76x = 6,715,865,677.30
  5. Step 5: Solve for x
    x = 6,715,865,677.30/74,116.76
  6. Step 6: Final answer
    x = 90,611.97

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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.