Home / 42,427.30-63,330.78-39,343.54

Finding the Fourth Proportional to 42,427.30, 63,330.78 and 39,343.54

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Solution

The fourth proportional to 42,427.30, 63,330.78 and 39,343.54 is: 58,727.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,427.30 : 63,330.78 = 39,343.54 : x
  2. Step 2: Convert to fraction form
    42,427.30/63,330.78 = 39,343.54/x
  3. Step 3: Cross multiply
    42,427.30x = 63,330.78 × 39,343.54
  4. Step 4: Simplify right side
    42,427.30x = 2,491,657,076.16
  5. Step 5: Solve for x
    x = 2,491,657,076.16/42,427.30
  6. Step 6: Final answer
    x = 58,727.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.