Home / 51,818.04-77,715.45-20,228.85

Finding the Fourth Proportional to 51,818.04, 77,715.45 and 20,228.85

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Solution

The fourth proportional to 51,818.04, 77,715.45 and 20,228.85 is: 30,338.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,818.04 : 77,715.45 = 20,228.85 : x
  2. Step 2: Convert to fraction form
    51,818.04/77,715.45 = 20,228.85/x
  3. Step 3: Cross multiply
    51,818.04x = 77,715.45 × 20,228.85
  4. Step 4: Simplify right side
    51,818.04x = 1,572,094,180.73
  5. Step 5: Solve for x
    x = 1,572,094,180.73/51,818.04
  6. Step 6: Final answer
    x = 30,338.74

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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.