Home / 79,916.93-120,011.48-76,573.25

Finding the Fourth Proportional to 79,916.93, 120,011.48 and 76,573.25

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Solution

The fourth proportional to 79,916.93, 120,011.48 and 76,573.25 is: 114,990.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,916.93 : 120,011.48 = 76,573.25 : x
  2. Step 2: Convert to fraction form
    79,916.93/120,011.48 = 76,573.25/x
  3. Step 3: Cross multiply
    79,916.93x = 120,011.48 × 76,573.25
  4. Step 4: Simplify right side
    79,916.93x = 9,189,668,678.04
  5. Step 5: Solve for x
    x = 9,189,668,678.04/79,916.93
  6. Step 6: Final answer
    x = 114,990.26

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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.