Home / 90,313.14-135,496.44-31,154.79

Finding the Fourth Proportional to 90,313.14, 135,496.44 and 31,154.79

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Solution

The fourth proportional to 90,313.14, 135,496.44 and 31,154.79 is: 46,741.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,313.14 : 135,496.44 = 31,154.79 : x
  2. Step 2: Convert to fraction form
    90,313.14/135,496.44 = 31,154.79/x
  3. Step 3: Cross multiply
    90,313.14x = 135,496.44 × 31,154.79
  4. Step 4: Simplify right side
    90,313.14x = 4,221,363,133.95
  5. Step 5: Solve for x
    x = 4,221,363,133.95/90,313.14
  6. Step 6: Final answer
    x = 46,741.41

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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.