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Finding the Fourth Proportional to 90,313, 124,627.44 and 49,477.28

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Solution

The fourth proportional to 90,313, 124,627.44 and 49,477.28 is: 68,276.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,313 : 124,627.44 = 49,477.28 : x
  2. Step 2: Convert to fraction form
    90,313/124,627.44 = 49,477.28/x
  3. Step 3: Cross multiply
    90,313x = 124,627.44 × 49,477.28
  4. Step 4: Simplify right side
    90,313x = 6,166,226,744.56
  5. Step 5: Solve for x
    x = 6,166,226,744.56/90,313
  6. Step 6: Final answer
    x = 68,276.18

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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.