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Finding the Fourth Proportional to 72,299.16, 108,438.48 and 27,946.80

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Solution

The fourth proportional to 72,299.16, 108,438.48 and 27,946.80 is: 41,916.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,299.16 : 108,438.48 = 27,946.80 : x
  2. Step 2: Convert to fraction form
    72,299.16/108,438.48 = 27,946.80/x
  3. Step 3: Cross multiply
    72,299.16x = 108,438.48 × 27,946.80
  4. Step 4: Simplify right side
    72,299.16x = 3,030,508,512.86
  5. Step 5: Solve for x
    x = 3,030,508,512.86/72,299.16
  6. Step 6: Final answer
    x = 41,916.23

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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.