Home / 90,530.86-124,845.80-54,226.50

Finding the Fourth Proportional to 90,530.86, 124,845.80 and 54,226.50

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Solution

The fourth proportional to 90,530.86, 124,845.80 and 54,226.50 is: 74,780.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,530.86 : 124,845.80 = 54,226.50 : x
  2. Step 2: Convert to fraction form
    90,530.86/124,845.80 = 54,226.50/x
  3. Step 3: Cross multiply
    90,530.86x = 124,845.80 × 54,226.50
  4. Step 4: Simplify right side
    90,530.86x = 6,769,950,773.70
  5. Step 5: Solve for x
    x = 6,769,950,773.70/90,530.86
  6. Step 6: Final answer
    x = 74,780.59

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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.