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Finding the Fourth Proportional to 90,083.75, 124,314.75 and 49,798.53

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Solution

The fourth proportional to 90,083.75, 124,314.75 and 49,798.53 is: 68,721.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,083.75 : 124,314.75 = 49,798.53 : x
  2. Step 2: Convert to fraction form
    90,083.75/124,314.75 = 49,798.53/x
  3. Step 3: Cross multiply
    90,083.75x = 124,314.75 × 49,798.53
  4. Step 4: Simplify right side
    90,083.75x = 6,190,691,807.32
  5. Step 5: Solve for x
    x = 6,190,691,807.32/90,083.75
  6. Step 6: Final answer
    x = 68,721.52

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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.