Home / 71,013.91-97,985.54-42,721.42

Finding the Fourth Proportional to 71,013.91, 97,985.54 and 42,721.42

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Solution

The fourth proportional to 71,013.91, 97,985.54 and 42,721.42 is: 58,947.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,013.91 : 97,985.54 = 42,721.42 : x
  2. Step 2: Convert to fraction form
    71,013.91/97,985.54 = 42,721.42/x
  3. Step 3: Cross multiply
    71,013.91x = 97,985.54 × 42,721.42
  4. Step 4: Simplify right side
    71,013.91x = 4,186,080,704.73
  5. Step 5: Solve for x
    x = 4,186,080,704.73/71,013.91
  6. Step 6: Final answer
    x = 58,947.34

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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.