Home / 90,018.09-124,227.48-49,734.45

Finding the Fourth Proportional to 90,018.09, 124,227.48 and 49,734.45

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Solution

The fourth proportional to 90,018.09, 124,227.48 and 49,734.45 is: 68,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,018.09 : 124,227.48 = 49,734.45 : x
  2. Step 2: Convert to fraction form
    90,018.09/124,227.48 = 49,734.45/x
  3. Step 3: Cross multiply
    90,018.09x = 124,227.48 × 49,734.45
  4. Step 4: Simplify right side
    90,018.09x = 6,178,385,392.69
  5. Step 5: Solve for x
    x = 6,178,385,392.69/90,018.09
  6. Step 6: Final answer
    x = 68,634.93

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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.