Home / 90,412.89-124,770.25-52,174.05

Finding the Fourth Proportional to 90,412.89, 124,770.25 and 52,174.05

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Solution

The fourth proportional to 90,412.89, 124,770.25 and 52,174.05 is: 72,000.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,412.89 : 124,770.25 = 52,174.05 : x
  2. Step 2: Convert to fraction form
    90,412.89/124,770.25 = 52,174.05/x
  3. Step 3: Cross multiply
    90,412.89x = 124,770.25 × 52,174.05
  4. Step 4: Simplify right side
    90,412.89x = 6,509,769,262.01
  5. Step 5: Solve for x
    x = 6,509,769,262.01/90,412.89
  6. Step 6: Final answer
    x = 72,000.46

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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.