Home / 42,125.23-63,156.61-19,912.64

Finding the Fourth Proportional to 42,125.23, 63,156.61 and 19,912.64

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Solution

The fourth proportional to 42,125.23, 63,156.61 and 19,912.64 is: 29,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,125.23 : 63,156.61 = 19,912.64 : x
  2. Step 2: Convert to fraction form
    42,125.23/63,156.61 = 19,912.64/x
  3. Step 3: Cross multiply
    42,125.23x = 63,156.61 × 19,912.64
  4. Step 4: Simplify right side
    42,125.23x = 1,257,614,946.66
  5. Step 5: Solve for x
    x = 1,257,614,946.66/42,125.23
  6. Step 6: Final answer
    x = 29,854.20

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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.