Home / 54,756.48-82,139.20-17,319.12

Finding the Fourth Proportional to 54,756.48, 82,139.20 and 17,319.12

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Solution

The fourth proportional to 54,756.48, 82,139.20 and 17,319.12 is: 25,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,756.48 : 82,139.20 = 17,319.12 : x
  2. Step 2: Convert to fraction form
    54,756.48/82,139.20 = 17,319.12/x
  3. Step 3: Cross multiply
    54,756.48x = 82,139.20 × 17,319.12
  4. Step 4: Simplify right side
    54,756.48x = 1,422,578,661.50
  5. Step 5: Solve for x
    x = 1,422,578,661.50/54,756.48
  6. Step 6: Final answer
    x = 25,980.10

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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.