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Finding the Fourth Proportional to 67,328.82, 92,909.84 and 38,641.86

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Solution

The fourth proportional to 67,328.82, 92,909.84 and 38,641.86 is: 53,323.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,328.82 : 92,909.84 = 38,641.86 : x
  2. Step 2: Convert to fraction form
    67,328.82/92,909.84 = 38,641.86/x
  3. Step 3: Cross multiply
    67,328.82x = 92,909.84 × 38,641.86
  4. Step 4: Simplify right side
    67,328.82x = 3,590,208,836.69
  5. Step 5: Solve for x
    x = 3,590,208,836.69/67,328.82
  6. Step 6: Final answer
    x = 53,323.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.