Home / 40,688.04-61,033.68-12,611.01

Finding the Fourth Proportional to 40,688.04, 61,033.68 and 12,611.01

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Solution

The fourth proportional to 40,688.04, 61,033.68 and 12,611.01 is: 18,917.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,688.04 : 61,033.68 = 12,611.01 : x
  2. Step 2: Convert to fraction form
    40,688.04/61,033.68 = 12,611.01/x
  3. Step 3: Cross multiply
    40,688.04x = 61,033.68 × 12,611.01
  4. Step 4: Simplify right side
    40,688.04x = 769,696,348.82
  5. Step 5: Solve for x
    x = 769,696,348.82/40,688.04
  6. Step 6: Final answer
    x = 18,917.02

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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.