Home / 45,191.08-67,749.36-21,489.22

Finding the Fourth Proportional to 45,191.08, 67,749.36 and 21,489.22

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Solution

The fourth proportional to 45,191.08, 67,749.36 and 21,489.22 is: 32,216.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,191.08 : 67,749.36 = 21,489.22 : x
  2. Step 2: Convert to fraction form
    45,191.08/67,749.36 = 21,489.22/x
  3. Step 3: Cross multiply
    45,191.08x = 67,749.36 × 21,489.22
  4. Step 4: Simplify right side
    45,191.08x = 1,455,880,901.90
  5. Step 5: Solve for x
    x = 1,455,880,901.90/45,191.08
  6. Step 6: Final answer
    x = 32,216.11

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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.