Home / 90,308.93-135,463.72-30,335.70

Finding the Fourth Proportional to 90,308.93, 135,463.72 and 30,335.70

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Solution

The fourth proportional to 90,308.93, 135,463.72 and 30,335.70 is: 45,503.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,308.93 : 135,463.72 = 30,335.70 : x
  2. Step 2: Convert to fraction form
    90,308.93/135,463.72 = 30,335.70/x
  3. Step 3: Cross multiply
    90,308.93x = 135,463.72 × 30,335.70
  4. Step 4: Simplify right side
    90,308.93x = 4,109,386,093.49
  5. Step 5: Solve for x
    x = 4,109,386,093.49/90,308.93
  6. Step 6: Final answer
    x = 45,503.65

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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.