Home / 42,706.20-64,059.30-19,013.70

Finding the Fourth Proportional to 42,706.20, 64,059.30 and 19,013.70

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Solution

The fourth proportional to 42,706.20, 64,059.30 and 19,013.70 is: 28,520.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,706.20 : 64,059.30 = 19,013.70 : x
  2. Step 2: Convert to fraction form
    42,706.20/64,059.30 = 19,013.70/x
  3. Step 3: Cross multiply
    42,706.20x = 64,059.30 × 19,013.70
  4. Step 4: Simplify right side
    42,706.20x = 1,218,004,312.41
  5. Step 5: Solve for x
    x = 1,218,004,312.41/42,706.20
  6. Step 6: Final answer
    x = 28,520.55

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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.