Home / 45,031.56-67,510.90-18,756.04

Finding the Fourth Proportional to 45,031.56, 67,510.90 and 18,756.04

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Solution

The fourth proportional to 45,031.56, 67,510.90 and 18,756.04 is: 28,118.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,031.56 : 67,510.90 = 18,756.04 : x
  2. Step 2: Convert to fraction form
    45,031.56/67,510.90 = 18,756.04/x
  3. Step 3: Cross multiply
    45,031.56x = 67,510.90 × 18,756.04
  4. Step 4: Simplify right side
    45,031.56x = 1,266,237,140.84
  5. Step 5: Solve for x
    x = 1,266,237,140.84/45,031.56
  6. Step 6: Final answer
    x = 28,118.88

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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.