Home / 71,178.12-97,942.50-69,013.80

Finding the Fourth Proportional to 71,178.12, 97,942.50 and 69,013.80

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Solution

The fourth proportional to 71,178.12, 97,942.50 and 69,013.80 is: 94,964.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,178.12 : 97,942.50 = 69,013.80 : x
  2. Step 2: Convert to fraction form
    71,178.12/97,942.50 = 69,013.80/x
  3. Step 3: Cross multiply
    71,178.12x = 97,942.50 × 69,013.80
  4. Step 4: Simplify right side
    71,178.12x = 6,759,384,106.50
  5. Step 5: Solve for x
    x = 6,759,384,106.50/71,178.12
  6. Step 6: Final answer
    x = 94,964.35

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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.