Home / 56,221.68-84,410.28-28,539.12

Finding the Fourth Proportional to 56,221.68, 84,410.28 and 28,539.12

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Solution

The fourth proportional to 56,221.68, 84,410.28 and 28,539.12 is: 42,848.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,221.68 : 84,410.28 = 28,539.12 : x
  2. Step 2: Convert to fraction form
    56,221.68/84,410.28 = 28,539.12/x
  3. Step 3: Cross multiply
    56,221.68x = 84,410.28 × 28,539.12
  4. Step 4: Simplify right side
    56,221.68x = 2,408,995,110.15
  5. Step 5: Solve for x
    x = 2,408,995,110.15/56,221.68
  6. Step 6: Final answer
    x = 42,848.15

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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.