Home / 56,241.12-77,609.70-31,089

Finding the Fourth Proportional to 56,241.12, 77,609.70 and 31,089

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Solution

The fourth proportional to 56,241.12, 77,609.70 and 31,089 is: 42,901.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,241.12 : 77,609.70 = 31,089 : x
  2. Step 2: Convert to fraction form
    56,241.12/77,609.70 = 31,089/x
  3. Step 3: Cross multiply
    56,241.12x = 77,609.70 × 31,089
  4. Step 4: Simplify right side
    56,241.12x = 2,412,807,963.30
  5. Step 5: Solve for x
    x = 2,412,807,963.30/56,241.12
  6. Step 6: Final answer
    x = 42,901.14

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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.