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Finding the Fourth Proportional to 72,341.70, 108,512.55 and 48,722.10

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Solution

The fourth proportional to 72,341.70, 108,512.55 and 48,722.10 is: 73,083.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,341.70 : 108,512.55 = 48,722.10 : x
  2. Step 2: Convert to fraction form
    72,341.70/108,512.55 = 48,722.10/x
  3. Step 3: Cross multiply
    72,341.70x = 108,512.55 × 48,722.10
  4. Step 4: Simplify right side
    72,341.70x = 5,286,959,312.36
  5. Step 5: Solve for x
    x = 5,286,959,312.36/72,341.70
  6. Step 6: Final answer
    x = 73,083.15

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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.