Home / 55,192.75-82,801.47-20,132.40

Finding the Fourth Proportional to 55,192.75, 82,801.47 and 20,132.40

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Solution

The fourth proportional to 55,192.75, 82,801.47 and 20,132.40 is: 30,203.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,192.75 : 82,801.47 = 20,132.40 : x
  2. Step 2: Convert to fraction form
    55,192.75/82,801.47 = 20,132.40/x
  3. Step 3: Cross multiply
    55,192.75x = 82,801.47 × 20,132.40
  4. Step 4: Simplify right side
    55,192.75x = 1,666,992,314.63
  5. Step 5: Solve for x
    x = 1,666,992,314.63/55,192.75
  6. Step 6: Final answer
    x = 30,203.10

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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.