Home / 65,589.41-98,387.19-21,219.63

Finding the Fourth Proportional to 65,589.41, 98,387.19 and 21,219.63

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Solution

The fourth proportional to 65,589.41, 98,387.19 and 21,219.63 is: 31,830.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,589.41 : 98,387.19 = 21,219.63 : x
  2. Step 2: Convert to fraction form
    65,589.41/98,387.19 = 21,219.63/x
  3. Step 3: Cross multiply
    65,589.41x = 98,387.19 × 21,219.63
  4. Step 4: Simplify right side
    65,589.41x = 2,087,739,768.54
  5. Step 5: Solve for x
    x = 2,087,739,768.54/65,589.41
  6. Step 6: Final answer
    x = 31,830.44

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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.