Home / 54,322.32-81,476.56-21,019.60

Finding the Fourth Proportional to 54,322.32, 81,476.56 and 21,019.60

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Solution

The fourth proportional to 54,322.32, 81,476.56 and 21,019.60 is: 31,526.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,322.32 : 81,476.56 = 21,019.60 : x
  2. Step 2: Convert to fraction form
    54,322.32/81,476.56 = 21,019.60/x
  3. Step 3: Cross multiply
    54,322.32x = 81,476.56 × 21,019.60
  4. Step 4: Simplify right side
    54,322.32x = 1,712,604,769.58
  5. Step 5: Solve for x
    x = 1,712,604,769.58/54,322.32
  6. Step 6: Final answer
    x = 31,526.72

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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.