Home / 90,552.12-135,835.68-28,222.62

Finding the Fourth Proportional to 90,552.12, 135,835.68 and 28,222.62

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Solution

The fourth proportional to 90,552.12, 135,835.68 and 28,222.62 is: 42,336.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,552.12 : 135,835.68 = 28,222.62 : x
  2. Step 2: Convert to fraction form
    90,552.12/135,835.68 = 28,222.62/x
  3. Step 3: Cross multiply
    90,552.12x = 135,835.68 × 28,222.62
  4. Step 4: Simplify right side
    90,552.12x = 3,833,638,779.08
  5. Step 5: Solve for x
    x = 3,833,638,779.08/90,552.12
  6. Step 6: Final answer
    x = 42,336.27

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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.