Home / 69,073.90-103,687.65-42,808.30

Finding the Fourth Proportional to 69,073.90, 103,687.65 and 42,808.30

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Solution

The fourth proportional to 69,073.90, 103,687.65 and 42,808.30 is: 64,260.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,073.90 : 103,687.65 = 42,808.30 : x
  2. Step 2: Convert to fraction form
    69,073.90/103,687.65 = 42,808.30/x
  3. Step 3: Cross multiply
    69,073.90x = 103,687.65 × 42,808.30
  4. Step 4: Simplify right side
    69,073.90x = 4,438,692,027.50
  5. Step 5: Solve for x
    x = 4,438,692,027.50/69,073.90
  6. Step 6: Final answer
    x = 64,260.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.