Home / 40,720.60-61,064.70-14,411.80

Finding the Fourth Proportional to 40,720.60, 61,064.70 and 14,411.80

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Solution

The fourth proportional to 40,720.60, 61,064.70 and 14,411.80 is: 21,611.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,720.60 : 61,064.70 = 14,411.80 : x
  2. Step 2: Convert to fraction form
    40,720.60/61,064.70 = 14,411.80/x
  3. Step 3: Cross multiply
    40,720.60x = 61,064.70 × 14,411.80
  4. Step 4: Simplify right side
    40,720.60x = 880,052,243.46
  5. Step 5: Solve for x
    x = 880,052,243.46/40,720.60
  6. Step 6: Final answer
    x = 21,611.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.