Home / 76,864.67-106,072.97-42,873.13

Finding the Fourth Proportional to 76,864.67, 106,072.97 and 42,873.13

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Solution

The fourth proportional to 76,864.67, 106,072.97 and 42,873.13 is: 59,164.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,864.67 : 106,072.97 = 42,873.13 : x
  2. Step 2: Convert to fraction form
    76,864.67/106,072.97 = 42,873.13/x
  3. Step 3: Cross multiply
    76,864.67x = 106,072.97 × 42,873.13
  4. Step 4: Simplify right side
    76,864.67x = 4,547,679,487.57
  5. Step 5: Solve for x
    x = 4,547,679,487.57/76,864.67
  6. Step 6: Final answer
    x = 59,164.76

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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.