Home / 82,770.24-114,116.40-60,142.08

Finding the Fourth Proportional to 82,770.24, 114,116.40 and 60,142.08

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Solution

The fourth proportional to 82,770.24, 114,116.40 and 60,142.08 is: 82,918.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,770.24 : 114,116.40 = 60,142.08 : x
  2. Step 2: Convert to fraction form
    82,770.24/114,116.40 = 60,142.08/x
  3. Step 3: Cross multiply
    82,770.24x = 114,116.40 × 60,142.08
  4. Step 4: Simplify right side
    82,770.24x = 6,863,197,658.11
  5. Step 5: Solve for x
    x = 6,863,197,658.11/82,770.24
  6. Step 6: Final answer
    x = 82,918.66

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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.