Home / 81,528.93-122,271.22-22,350.53

Finding the Fourth Proportional to 81,528.93, 122,271.22 and 22,350.53

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Solution

The fourth proportional to 81,528.93, 122,271.22 and 22,350.53 is: 33,519.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,528.93 : 122,271.22 = 22,350.53 : x
  2. Step 2: Convert to fraction form
    81,528.93/122,271.22 = 22,350.53/x
  3. Step 3: Cross multiply
    81,528.93x = 122,271.22 × 22,350.53
  4. Step 4: Simplify right side
    81,528.93x = 2,732,826,904.36
  5. Step 5: Solve for x
    x = 2,732,826,904.36/81,528.93
  6. Step 6: Final answer
    x = 33,519.72

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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.