Home / 90,649.56-135,907.38-48,528.12

Finding the Fourth Proportional to 90,649.56, 135,907.38 and 48,528.12

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Solution

The fourth proportional to 90,649.56, 135,907.38 and 48,528.12 is: 72,756.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,649.56 : 135,907.38 = 48,528.12 : x
  2. Step 2: Convert to fraction form
    90,649.56/135,907.38 = 48,528.12/x
  3. Step 3: Cross multiply
    90,649.56x = 135,907.38 × 48,528.12
  4. Step 4: Simplify right side
    90,649.56x = 6,595,329,645.53
  5. Step 5: Solve for x
    x = 6,595,329,645.53/90,649.56
  6. Step 6: Final answer
    x = 72,756.33

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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.