Home / 90,112.02-124,363.66-49,828.82

Finding the Fourth Proportional to 90,112.02, 124,363.66 and 49,828.82

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Solution

The fourth proportional to 90,112.02, 124,363.66 and 49,828.82 is: 68,768.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,112.02 : 124,363.66 = 49,828.82 : x
  2. Step 2: Convert to fraction form
    90,112.02/124,363.66 = 49,828.82/x
  3. Step 3: Cross multiply
    90,112.02x = 124,363.66 × 49,828.82
  4. Step 4: Simplify right side
    90,112.02x = 6,196,894,428.68
  5. Step 5: Solve for x
    x = 6,196,894,428.68/90,112.02
  6. Step 6: Final answer
    x = 68,768.79

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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.