Home / 42,704.20-64,056.30-19,011.70

Finding the Fourth Proportional to 42,704.20, 64,056.30 and 19,011.70

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Solution

The fourth proportional to 42,704.20, 64,056.30 and 19,011.70 is: 28,517.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,704.20 : 64,056.30 = 19,011.70 : x
  2. Step 2: Convert to fraction form
    42,704.20/64,056.30 = 19,011.70/x
  3. Step 3: Cross multiply
    42,704.20x = 64,056.30 × 19,011.70
  4. Step 4: Simplify right side
    42,704.20x = 1,217,819,158.71
  5. Step 5: Solve for x
    x = 1,217,819,158.71/42,704.20
  6. Step 6: Final answer
    x = 28,517.55

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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.