Home / 56,345.49-84,551.04-21,287.88

Finding the Fourth Proportional to 56,345.49, 84,551.04 and 21,287.88

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Solution

The fourth proportional to 56,345.49, 84,551.04 and 21,287.88 is: 31,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,345.49 : 84,551.04 = 21,287.88 : x
  2. Step 2: Convert to fraction form
    56,345.49/84,551.04 = 21,287.88/x
  3. Step 3: Cross multiply
    56,345.49x = 84,551.04 × 21,287.88
  4. Step 4: Simplify right side
    56,345.49x = 1,799,912,393.40
  5. Step 5: Solve for x
    x = 1,799,912,393.40/56,345.49
  6. Step 6: Final answer
    x = 31,944.21

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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.