Home / 42,125.50-63,206.70-19,954.72

Finding the Fourth Proportional to 42,125.50, 63,206.70 and 19,954.72

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Solution

The fourth proportional to 42,125.50, 63,206.70 and 19,954.72 is: 29,940.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,125.50 : 63,206.70 = 19,954.72 : x
  2. Step 2: Convert to fraction form
    42,125.50/63,206.70 = 19,954.72/x
  3. Step 3: Cross multiply
    42,125.50x = 63,206.70 × 19,954.72
  4. Step 4: Simplify right side
    42,125.50x = 1,261,272,000.62
  5. Step 5: Solve for x
    x = 1,261,272,000.62/42,125.50
  6. Step 6: Final answer
    x = 29,940.82

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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.