Home / 42,049.84-57,961.12-30,701.36

Finding the Fourth Proportional to 42,049.84, 57,961.12 and 30,701.36

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Solution

The fourth proportional to 42,049.84, 57,961.12 and 30,701.36 is: 42,318.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,049.84 : 57,961.12 = 30,701.36 : x
  2. Step 2: Convert to fraction form
    42,049.84/57,961.12 = 30,701.36/x
  3. Step 3: Cross multiply
    42,049.84x = 57,961.12 × 30,701.36
  4. Step 4: Simplify right side
    42,049.84x = 1,779,485,211.12
  5. Step 5: Solve for x
    x = 1,779,485,211.12/42,049.84
  6. Step 6: Final answer
    x = 42,318.48

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1.5x scale

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.