Home / 90,109.85-124,349.37-49,822.58

Finding the Fourth Proportional to 90,109.85, 124,349.37 and 49,822.58

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Solution

The fourth proportional to 90,109.85, 124,349.37 and 49,822.58 is: 68,753.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,109.85 : 124,349.37 = 49,822.58 : x
  2. Step 2: Convert to fraction form
    90,109.85/124,349.37 = 49,822.58/x
  3. Step 3: Cross multiply
    90,109.85x = 124,349.37 × 49,822.58
  4. Step 4: Simplify right side
    90,109.85x = 6,195,405,813.03
  5. Step 5: Solve for x
    x = 6,195,405,813.03/90,109.85
  6. Step 6: Final answer
    x = 68,753.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.