Home / 51,221.11-70,679.96-28,557.98

Finding the Fourth Proportional to 51,221.11, 70,679.96 and 28,557.98

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Solution

The fourth proportional to 51,221.11, 70,679.96 and 28,557.98 is: 39,407.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,221.11 : 70,679.96 = 28,557.98 : x
  2. Step 2: Convert to fraction form
    51,221.11/70,679.96 = 28,557.98/x
  3. Step 3: Cross multiply
    51,221.11x = 70,679.96 × 28,557.98
  4. Step 4: Simplify right side
    51,221.11x = 2,018,476,884.08
  5. Step 5: Solve for x
    x = 2,018,476,884.08/51,221.11
  6. Step 6: Final answer
    x = 39,407.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.