Home / 90,256.77-135,400.52-45,299.56

Finding the Fourth Proportional to 90,256.77, 135,400.52 and 45,299.56

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Solution

The fourth proportional to 90,256.77, 135,400.52 and 45,299.56 is: 67,957.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,256.77 : 135,400.52 = 45,299.56 : x
  2. Step 2: Convert to fraction form
    90,256.77/135,400.52 = 45,299.56/x
  3. Step 3: Cross multiply
    90,256.77x = 135,400.52 × 45,299.56
  4. Step 4: Simplify right side
    90,256.77x = 6,133,583,979.77
  5. Step 5: Solve for x
    x = 6,133,583,979.77/90,256.77
  6. Step 6: Final answer
    x = 67,957.05

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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.