Home / 42,040.45-63,060.40-12,458.44

Finding the Fourth Proportional to 42,040.45, 63,060.40 and 12,458.44

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Solution

The fourth proportional to 42,040.45, 63,060.40 and 12,458.44 is: 18,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,040.45 : 63,060.40 = 12,458.44 : x
  2. Step 2: Convert to fraction form
    42,040.45/63,060.40 = 12,458.44/x
  3. Step 3: Cross multiply
    42,040.45x = 63,060.40 × 12,458.44
  4. Step 4: Simplify right side
    42,040.45x = 785,634,209.78
  5. Step 5: Solve for x
    x = 785,634,209.78/42,040.45
  6. Step 6: Final answer
    x = 18,687.58

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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.