Home / 90,214.56-135,320.42-31,050.74

Finding the Fourth Proportional to 90,214.56, 135,320.42 and 31,050.74

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Solution

The fourth proportional to 90,214.56, 135,320.42 and 31,050.74 is: 46,575.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,214.56 : 135,320.42 = 31,050.74 : x
  2. Step 2: Convert to fraction form
    90,214.56/135,320.42 = 31,050.74/x
  3. Step 3: Cross multiply
    90,214.56x = 135,320.42 × 31,050.74
  4. Step 4: Simplify right side
    90,214.56x = 4,201,799,594.04
  5. Step 5: Solve for x
    x = 4,201,799,594.04/90,214.56
  6. Step 6: Final answer
    x = 46,575.63

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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.