Home / 56,981.83-85,476.39-21,921.49

Finding the Fourth Proportional to 56,981.83, 85,476.39 and 21,921.49

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Solution

The fourth proportional to 56,981.83, 85,476.39 and 21,921.49 is: 32,883.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,981.83 : 85,476.39 = 21,921.49 : x
  2. Step 2: Convert to fraction form
    56,981.83/85,476.39 = 21,921.49/x
  3. Step 3: Cross multiply
    56,981.83x = 85,476.39 × 21,921.49
  4. Step 4: Simplify right side
    56,981.83x = 1,873,769,434.11
  5. Step 5: Solve for x
    x = 1,873,769,434.11/56,981.83
  6. Step 6: Final answer
    x = 32,883.63

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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.