Home / 74,005.47-111,026.42-21,420.27

Finding the Fourth Proportional to 74,005.47, 111,026.42 and 21,420.27

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Solution

The fourth proportional to 74,005.47, 111,026.42 and 21,420.27 is: 32,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,005.47 : 111,026.42 = 21,420.27 : x
  2. Step 2: Convert to fraction form
    74,005.47/111,026.42 = 21,420.27/x
  3. Step 3: Cross multiply
    74,005.47x = 111,026.42 × 21,420.27
  4. Step 4: Simplify right side
    74,005.47x = 2,378,215,893.53
  5. Step 5: Solve for x
    x = 2,378,215,893.53/74,005.47
  6. Step 6: Final answer
    x = 32,135.68

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1.5x scale

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.