Home / 89,811.90-134,731.70-30,633.74

Finding the Fourth Proportional to 89,811.90, 134,731.70 and 30,633.74

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Solution

The fourth proportional to 89,811.90, 134,731.70 and 30,633.74 is: 45,955.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,811.90 : 134,731.70 = 30,633.74 : x
  2. Step 2: Convert to fraction form
    89,811.90/134,731.70 = 30,633.74/x
  3. Step 3: Cross multiply
    89,811.90x = 134,731.70 × 30,633.74
  4. Step 4: Simplify right side
    89,811.90x = 4,127,335,867.56
  5. Step 5: Solve for x
    x = 4,127,335,867.56/89,811.90
  6. Step 6: Final answer
    x = 45,955.33

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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.