Home / 90,557.36-135,829.56-28,226

Finding the Fourth Proportional to 90,557.36, 135,829.56 and 28,226

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Solution

The fourth proportional to 90,557.36, 135,829.56 and 28,226 is: 42,336.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,557.36 : 135,829.56 = 28,226 : x
  2. Step 2: Convert to fraction form
    90,557.36/135,829.56 = 28,226/x
  3. Step 3: Cross multiply
    90,557.36x = 135,829.56 × 28,226
  4. Step 4: Simplify right side
    90,557.36x = 3,833,925,160.56
  5. Step 5: Solve for x
    x = 3,833,925,160.56/90,557.36
  6. Step 6: Final answer
    x = 42,336.98

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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.