Home / 90,280.22-135,337.40-31,101.82

Finding the Fourth Proportional to 90,280.22, 135,337.40 and 31,101.82

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Solution

The fourth proportional to 90,280.22, 135,337.40 and 31,101.82 is: 46,624.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,280.22 : 135,337.40 = 31,101.82 : x
  2. Step 2: Convert to fraction form
    90,280.22/135,337.40 = 31,101.82/x
  3. Step 3: Cross multiply
    90,280.22x = 135,337.40 × 31,101.82
  4. Step 4: Simplify right side
    90,280.22x = 4,209,239,454.07
  5. Step 5: Solve for x
    x = 4,209,239,454.07/90,280.22
  6. Step 6: Final answer
    x = 46,624.16

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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.