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Finding the Fourth Proportional to 90,374.94, 124,714.89 and 54,551.88

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Solution

The fourth proportional to 90,374.94, 124,714.89 and 54,551.88 is: 75,280.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,374.94 : 124,714.89 = 54,551.88 : x
  2. Step 2: Convert to fraction form
    90,374.94/124,714.89 = 54,551.88/x
  3. Step 3: Cross multiply
    90,374.94x = 124,714.89 × 54,551.88
  4. Step 4: Simplify right side
    90,374.94x = 6,803,431,713.49
  5. Step 5: Solve for x
    x = 6,803,431,713.49/90,374.94
  6. Step 6: Final answer
    x = 75,280.07

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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.