Home / 56,240.68-84,373.38-21,180.28

Finding the Fourth Proportional to 56,240.68, 84,373.38 and 21,180.28

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Solution

The fourth proportional to 56,240.68, 84,373.38 and 21,180.28 is: 31,775.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,240.68 : 84,373.38 = 21,180.28 : x
  2. Step 2: Convert to fraction form
    56,240.68/84,373.38 = 21,180.28/x
  3. Step 3: Cross multiply
    56,240.68x = 84,373.38 × 21,180.28
  4. Step 4: Simplify right side
    56,240.68x = 1,787,051,812.95
  5. Step 5: Solve for x
    x = 1,787,051,812.95/56,240.68
  6. Step 6: Final answer
    x = 31,775.07

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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.