Home / 91,423.37-126,175.93-51,139.37

Finding the Fourth Proportional to 91,423.37, 126,175.93 and 51,139.37

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Solution

The fourth proportional to 91,423.37, 126,175.93 and 51,139.37 is: 70,578.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,423.37 : 126,175.93 = 51,139.37 : x
  2. Step 2: Convert to fraction form
    91,423.37/126,175.93 = 51,139.37/x
  3. Step 3: Cross multiply
    91,423.37x = 126,175.93 × 51,139.37
  4. Step 4: Simplify right side
    91,423.37x = 6,452,556,810.64
  5. Step 5: Solve for x
    x = 6,452,556,810.64/91,423.37
  6. Step 6: Final answer
    x = 70,578.86

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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.