Home / 90,270.48-124,571.64-49,984.12

Finding the Fourth Proportional to 90,270.48, 124,571.64 and 49,984.12

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Solution

The fourth proportional to 90,270.48, 124,571.64 and 49,984.12 is: 68,977.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,270.48 : 124,571.64 = 49,984.12 : x
  2. Step 2: Convert to fraction form
    90,270.48/124,571.64 = 49,984.12/x
  3. Step 3: Cross multiply
    90,270.48x = 124,571.64 × 49,984.12
  4. Step 4: Simplify right side
    90,270.48x = 6,226,602,929.58
  5. Step 5: Solve for x
    x = 6,226,602,929.58/90,270.48
  6. Step 6: Final answer
    x = 68,977.18

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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.