Home / 56,363.18-77,781.20-30,871.14

Finding the Fourth Proportional to 56,363.18, 77,781.20 and 30,871.14

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Solution

The fourth proportional to 56,363.18, 77,781.20 and 30,871.14 is: 42,602.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,363.18 : 77,781.20 = 30,871.14 : x
  2. Step 2: Convert to fraction form
    56,363.18/77,781.20 = 30,871.14/x
  3. Step 3: Cross multiply
    56,363.18x = 77,781.20 × 30,871.14
  4. Step 4: Simplify right side
    56,363.18x = 2,401,194,160.21
  5. Step 5: Solve for x
    x = 2,401,194,160.21/56,363.18
  6. Step 6: Final answer
    x = 42,602.18

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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.