Home / 51,775.75-77,663.64-16,720.57

Finding the Fourth Proportional to 51,775.75, 77,663.64 and 16,720.57

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Solution

The fourth proportional to 51,775.75, 77,663.64 and 16,720.57 is: 25,080.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,775.75 : 77,663.64 = 16,720.57 : x
  2. Step 2: Convert to fraction form
    51,775.75/77,663.64 = 16,720.57/x
  3. Step 3: Cross multiply
    51,775.75x = 77,663.64 × 16,720.57
  4. Step 4: Simplify right side
    51,775.75x = 1,298,580,329.07
  5. Step 5: Solve for x
    x = 1,298,580,329.07/51,775.75
  6. Step 6: Final answer
    x = 25,080.86

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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.