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Finding the Fourth Proportional to 79,392.92, 109,570.95 and 45,404.57

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Solution

The fourth proportional to 79,392.92, 109,570.95 and 45,404.57 is: 62,663.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,392.92 : 109,570.95 = 45,404.57 : x
  2. Step 2: Convert to fraction form
    79,392.92/109,570.95 = 45,404.57/x
  3. Step 3: Cross multiply
    79,392.92x = 109,570.95 × 45,404.57
  4. Step 4: Simplify right side
    79,392.92x = 4,975,021,869.24
  5. Step 5: Solve for x
    x = 4,975,021,869.24/79,392.92
  6. Step 6: Final answer
    x = 62,663.29

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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.