Home / 55,153.60-82,730.22-21,881.32

Finding the Fourth Proportional to 55,153.60, 82,730.22 and 21,881.32

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Solution

The fourth proportional to 55,153.60, 82,730.22 and 21,881.32 is: 32,821.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,153.60 : 82,730.22 = 21,881.32 : x
  2. Step 2: Convert to fraction form
    55,153.60/82,730.22 = 21,881.32/x
  3. Step 3: Cross multiply
    55,153.60x = 82,730.22 × 21,881.32
  4. Step 4: Simplify right side
    55,153.60x = 1,810,246,417.49
  5. Step 5: Solve for x
    x = 1,810,246,417.49/55,153.60
  6. Step 6: Final answer
    x = 32,821.91

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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.