Home / 90,090.50-124,324.07-49,805.28

Finding the Fourth Proportional to 90,090.50, 124,324.07 and 49,805.28

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Solution

The fourth proportional to 90,090.50, 124,324.07 and 49,805.28 is: 68,730.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,090.50 : 124,324.07 = 49,805.28 : x
  2. Step 2: Convert to fraction form
    90,090.50/124,324.07 = 49,805.28/x
  3. Step 3: Cross multiply
    90,090.50x = 124,324.07 × 49,805.28
  4. Step 4: Simplify right side
    90,090.50x = 6,191,994,868.06
  5. Step 5: Solve for x
    x = 6,191,994,868.06/90,090.50
  6. Step 6: Final answer
    x = 68,730.83

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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.