Home / 42,123.78-63,185.64-10,959.03

Finding the Fourth Proportional to 42,123.78, 63,185.64 and 10,959.03

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Solution

The fourth proportional to 42,123.78, 63,185.64 and 10,959.03 is: 16,438.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,123.78 : 63,185.64 = 10,959.03 : x
  2. Step 2: Convert to fraction form
    42,123.78/63,185.64 = 10,959.03/x
  3. Step 3: Cross multiply
    42,123.78x = 63,185.64 × 10,959.03
  4. Step 4: Simplify right side
    42,123.78x = 692,453,324.33
  5. Step 5: Solve for x
    x = 692,453,324.33/42,123.78
  6. Step 6: Final answer
    x = 16,438.54

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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.