Home / 54,455.76-81,686.34-15,012

Finding the Fourth Proportional to 54,455.76, 81,686.34 and 15,012

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Solution

The fourth proportional to 54,455.76, 81,686.34 and 15,012 is: 22,518.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,455.76 : 81,686.34 = 15,012 : x
  2. Step 2: Convert to fraction form
    54,455.76/81,686.34 = 15,012/x
  3. Step 3: Cross multiply
    54,455.76x = 81,686.34 × 15,012
  4. Step 4: Simplify right side
    54,455.76x = 1,226,275,336.08
  5. Step 5: Solve for x
    x = 1,226,275,336.08/54,455.76
  6. Step 6: Final answer
    x = 22,518.74

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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.