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Finding the Fourth Proportional to 67,068.74, 100,600.06 and 19,681.92

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Solution

The fourth proportional to 67,068.74, 100,600.06 and 19,681.92 is: 29,521.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068.74 : 100,600.06 = 19,681.92 : x
  2. Step 2: Convert to fraction form
    67,068.74/100,600.06 = 19,681.92/x
  3. Step 3: Cross multiply
    67,068.74x = 100,600.06 × 19,681.92
  4. Step 4: Simplify right side
    67,068.74x = 1,980,002,332.92
  5. Step 5: Solve for x
    x = 1,980,002,332.92/67,068.74
  6. Step 6: Final answer
    x = 29,521.98

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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.