Home / 56,126.93-84,126.74-18,678.20

Finding the Fourth Proportional to 56,126.93, 84,126.74 and 18,678.20

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Solution

The fourth proportional to 56,126.93, 84,126.74 and 18,678.20 is: 27,996.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,126.93 : 84,126.74 = 18,678.20 : x
  2. Step 2: Convert to fraction form
    56,126.93/84,126.74 = 18,678.20/x
  3. Step 3: Cross multiply
    56,126.93x = 84,126.74 × 18,678.20
  4. Step 4: Simplify right side
    56,126.93x = 1,571,335,561.04
  5. Step 5: Solve for x
    x = 1,571,335,561.04/56,126.93
  6. Step 6: Final answer
    x = 27,996.11

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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.