Home / 56,212.72-84,309.36-19,276.72

Finding the Fourth Proportional to 56,212.72, 84,309.36 and 19,276.72

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Solution

The fourth proportional to 56,212.72, 84,309.36 and 19,276.72 is: 28,911.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,212.72 : 84,309.36 = 19,276.72 : x
  2. Step 2: Convert to fraction form
    56,212.72/84,309.36 = 19,276.72/x
  3. Step 3: Cross multiply
    56,212.72x = 84,309.36 × 19,276.72
  4. Step 4: Simplify right side
    56,212.72x = 1,625,207,926.10
  5. Step 5: Solve for x
    x = 1,625,207,926.10/56,212.72
  6. Step 6: Final answer
    x = 28,911.75

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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.