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Finding the Fourth Proportional to 90,107.63, 124,348.52 and 50,363.63

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Solution

The fourth proportional to 90,107.63, 124,348.52 and 50,363.63 is: 69,501.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,107.63 : 124,348.52 = 50,363.63 : x
  2. Step 2: Convert to fraction form
    90,107.63/124,348.52 = 50,363.63/x
  3. Step 3: Cross multiply
    90,107.63x = 124,348.52 × 50,363.63
  4. Step 4: Simplify right side
    90,107.63x = 6,262,642,356.49
  5. Step 5: Solve for x
    x = 6,262,642,356.49/90,107.63
  6. Step 6: Final answer
    x = 69,501.80

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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.