Home / 45,113.02-67,624.92-21,378.88

Finding the Fourth Proportional to 45,113.02, 67,624.92 and 21,378.88

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Solution

The fourth proportional to 45,113.02, 67,624.92 and 21,378.88 is: 32,047.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,113.02 : 67,624.92 = 21,378.88 : x
  2. Step 2: Convert to fraction form
    45,113.02/67,624.92 = 21,378.88/x
  3. Step 3: Cross multiply
    45,113.02x = 67,624.92 × 21,378.88
  4. Step 4: Simplify right side
    45,113.02x = 1,445,745,049.69
  5. Step 5: Solve for x
    x = 1,445,745,049.69/45,113.02
  6. Step 6: Final answer
    x = 32,047.18

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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.