Home / 90,595.35-135,895.85-43,215.57

Finding the Fourth Proportional to 90,595.35, 135,895.85 and 43,215.57

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Solution

The fourth proportional to 90,595.35, 135,895.85 and 43,215.57 is: 64,824.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,595.35 : 135,895.85 = 43,215.57 : x
  2. Step 2: Convert to fraction form
    90,595.35/135,895.85 = 43,215.57/x
  3. Step 3: Cross multiply
    90,595.35x = 135,895.85 × 43,215.57
  4. Step 4: Simplify right side
    90,595.35x = 5,872,816,402.31
  5. Step 5: Solve for x
    x = 5,872,816,402.31/90,595.35
  6. Step 6: Final answer
    x = 64,824.70

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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.