Home / 51,915.20-77,944.80-33,310.40

Finding the Fourth Proportional to 51,915.20, 77,944.80 and 33,310.40

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Solution

The fourth proportional to 51,915.20, 77,944.80 and 33,310.40 is: 50,011.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,915.20 : 77,944.80 = 33,310.40 : x
  2. Step 2: Convert to fraction form
    51,915.20/77,944.80 = 33,310.40/x
  3. Step 3: Cross multiply
    51,915.20x = 77,944.80 × 33,310.40
  4. Step 4: Simplify right side
    51,915.20x = 2,596,372,465.92
  5. Step 5: Solve for x
    x = 2,596,372,465.92/51,915.20
  6. Step 6: Final answer
    x = 50,011.80

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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.