Home / 79,053.98-118,572.20-19,889.66

Finding the Fourth Proportional to 79,053.98, 118,572.20 and 19,889.66

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Solution

The fourth proportional to 79,053.98, 118,572.20 and 19,889.66 is: 29,832.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,053.98 : 118,572.20 = 19,889.66 : x
  2. Step 2: Convert to fraction form
    79,053.98/118,572.20 = 19,889.66/x
  3. Step 3: Cross multiply
    79,053.98x = 118,572.20 × 19,889.66
  4. Step 4: Simplify right side
    79,053.98x = 2,358,360,743.45
  5. Step 5: Solve for x
    x = 2,358,360,743.45/79,053.98
  6. Step 6: Final answer
    x = 29,832.28

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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.