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Finding the Fourth Proportional to 69,425.98, 104,122.72 and 19,510.86

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Solution

The fourth proportional to 69,425.98, 104,122.72 and 19,510.86 is: 29,261.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,425.98 : 104,122.72 = 19,510.86 : x
  2. Step 2: Convert to fraction form
    69,425.98/104,122.72 = 19,510.86/x
  3. Step 3: Cross multiply
    69,425.98x = 104,122.72 × 19,510.86
  4. Step 4: Simplify right side
    69,425.98x = 2,031,523,812.74
  5. Step 5: Solve for x
    x = 2,031,523,812.74/69,425.98
  6. Step 6: Final answer
    x = 29,261.72

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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.