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Finding the Fourth Proportional to 71,384.04, 98,509.95 and 42,704.91

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Solution

The fourth proportional to 71,384.04, 98,509.95 and 42,704.91 is: 58,932.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,384.04 : 98,509.95 = 42,704.91 : x
  2. Step 2: Convert to fraction form
    71,384.04/98,509.95 = 42,704.91/x
  3. Step 3: Cross multiply
    71,384.04x = 98,509.95 × 42,704.91
  4. Step 4: Simplify right side
    71,384.04x = 4,206,858,548.85
  5. Step 5: Solve for x
    x = 4,206,858,548.85/71,384.04
  6. Step 6: Final answer
    x = 58,932.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.