Home / 65,585.21-98,356.85-28,135.23

Finding the Fourth Proportional to 65,585.21, 98,356.85 and 28,135.23

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Solution

The fourth proportional to 65,585.21, 98,356.85 and 28,135.23 is: 42,193.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,585.21 : 98,356.85 = 28,135.23 : x
  2. Step 2: Convert to fraction form
    65,585.21/98,356.85 = 28,135.23/x
  3. Step 3: Cross multiply
    65,585.21x = 98,356.85 × 28,135.23
  4. Step 4: Simplify right side
    65,585.21x = 2,767,292,456.15
  5. Step 5: Solve for x
    x = 2,767,292,456.15/65,585.21
  6. Step 6: Final answer
    x = 42,193.85

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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.