Home / 90,568.48-135,826.80-28,222.24

Finding the Fourth Proportional to 90,568.48, 135,826.80 and 28,222.24

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Solution

The fourth proportional to 90,568.48, 135,826.80 and 28,222.24 is: 42,325.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,568.48 : 135,826.80 = 28,222.24 : x
  2. Step 2: Convert to fraction form
    90,568.48/135,826.80 = 28,222.24/x
  3. Step 3: Cross multiply
    90,568.48x = 135,826.80 × 28,222.24
  4. Step 4: Simplify right side
    90,568.48x = 3,833,336,548.03
  5. Step 5: Solve for x
    x = 3,833,336,548.03/90,568.48
  6. Step 6: Final answer
    x = 42,325.28

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1.5x scale

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.