Home / 75,139.30-103,692.45-41,148.10

Finding the Fourth Proportional to 75,139.30, 103,692.45 and 41,148.10

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Solution

The fourth proportional to 75,139.30, 103,692.45 and 41,148.10 is: 56,784.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,139.30 : 103,692.45 = 41,148.10 : x
  2. Step 2: Convert to fraction form
    75,139.30/103,692.45 = 41,148.10/x
  3. Step 3: Cross multiply
    75,139.30x = 103,692.45 × 41,148.10
  4. Step 4: Simplify right side
    75,139.30x = 4,266,747,301.85
  5. Step 5: Solve for x
    x = 4,266,747,301.85/75,139.30
  6. Step 6: Final answer
    x = 56,784.50

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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.