Home / 56,981.98-85,463.10-15,419.26

Finding the Fourth Proportional to 56,981.98, 85,463.10 and 15,419.26

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Solution

The fourth proportional to 56,981.98, 85,463.10 and 15,419.26 is: 23,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,981.98 : 85,463.10 = 15,419.26 : x
  2. Step 2: Convert to fraction form
    56,981.98/85,463.10 = 15,419.26/x
  3. Step 3: Cross multiply
    56,981.98x = 85,463.10 × 15,419.26
  4. Step 4: Simplify right side
    56,981.98x = 1,317,777,759.31
  5. Step 5: Solve for x
    x = 1,317,777,759.31/56,981.98
  6. Step 6: Final answer
    x = 23,126.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.