Home / 90,530.81-124,845.72-54,226.44

Finding the Fourth Proportional to 90,530.81, 124,845.72 and 54,226.44

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Solution

The fourth proportional to 90,530.81, 124,845.72 and 54,226.44 is: 74,780.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,530.81 : 124,845.72 = 54,226.44 : x
  2. Step 2: Convert to fraction form
    90,530.81/124,845.72 = 54,226.44/x
  3. Step 3: Cross multiply
    90,530.81x = 124,845.72 × 54,226.44
  4. Step 4: Simplify right side
    90,530.81x = 6,769,938,944.84
  5. Step 5: Solve for x
    x = 6,769,938,944.84/90,530.81
  6. Step 6: Final answer
    x = 74,780.50

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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.