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Finding the Fourth Proportional to 72,340.70, 108,511.05 and 44,347.10

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Solution

The fourth proportional to 72,340.70, 108,511.05 and 44,347.10 is: 66,520.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,340.70 : 108,511.05 = 44,347.10 : x
  2. Step 2: Convert to fraction form
    72,340.70/108,511.05 = 44,347.10/x
  3. Step 3: Cross multiply
    72,340.70x = 108,511.05 × 44,347.10
  4. Step 4: Simplify right side
    72,340.70x = 4,812,150,385.46
  5. Step 5: Solve for x
    x = 4,812,150,385.46/72,340.70
  6. Step 6: Final answer
    x = 66,520.65

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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.