Home / 56,215.20-84,327.60-19,279.20

Finding the Fourth Proportional to 56,215.20, 84,327.60 and 19,279.20

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Solution

The fourth proportional to 56,215.20, 84,327.60 and 19,279.20 is: 28,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,215.20 : 84,327.60 = 19,279.20 : x
  2. Step 2: Convert to fraction form
    56,215.20/84,327.60 = 19,279.20/x
  3. Step 3: Cross multiply
    56,215.20x = 84,327.60 × 19,279.20
  4. Step 4: Simplify right side
    56,215.20x = 1,625,768,665.92
  5. Step 5: Solve for x
    x = 1,625,768,665.92/56,215.20
  6. Step 6: Final answer
    x = 28,920.45

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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.