Home / 45,188.78-67,801.75-19,875.26

Finding the Fourth Proportional to 45,188.78, 67,801.75 and 19,875.26

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Solution

The fourth proportional to 45,188.78, 67,801.75 and 19,875.26 is: 29,821.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,188.78 : 67,801.75 = 19,875.26 : x
  2. Step 2: Convert to fraction form
    45,188.78/67,801.75 = 19,875.26/x
  3. Step 3: Cross multiply
    45,188.78x = 67,801.75 × 19,875.26
  4. Step 4: Simplify right side
    45,188.78x = 1,347,577,529.52
  5. Step 5: Solve for x
    x = 1,347,577,529.52/45,188.78
  6. Step 6: Final answer
    x = 29,821.07

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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.