Home / 54,152.64-81,220.59-20,888.28

Finding the Fourth Proportional to 54,152.64, 81,220.59 and 20,888.28

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Solution

The fourth proportional to 54,152.64, 81,220.59 and 20,888.28 is: 31,329.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,152.64 : 81,220.59 = 20,888.28 : x
  2. Step 2: Convert to fraction form
    54,152.64/81,220.59 = 20,888.28/x
  3. Step 3: Cross multiply
    54,152.64x = 81,220.59 × 20,888.28
  4. Step 4: Simplify right side
    54,152.64x = 1,696,558,425.69
  5. Step 5: Solve for x
    x = 1,696,558,425.69/54,152.64
  6. Step 6: Final answer
    x = 31,329.19

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1.5x scale

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.