Home / 45,182.50-67,746.40-20,217.89

Finding the Fourth Proportional to 45,182.50, 67,746.40 and 20,217.89

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Solution

The fourth proportional to 45,182.50, 67,746.40 and 20,217.89 is: 30,314.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,182.50 : 67,746.40 = 20,217.89 : x
  2. Step 2: Convert to fraction form
    45,182.50/67,746.40 = 20,217.89/x
  3. Step 3: Cross multiply
    45,182.50x = 67,746.40 × 20,217.89
  4. Step 4: Simplify right side
    45,182.50x = 1,369,689,381.92
  5. Step 5: Solve for x
    x = 1,369,689,381.92/45,182.50
  6. Step 6: Final answer
    x = 30,314.60

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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.