Home / 72,815.76-109,250.34-30,706.44

Finding the Fourth Proportional to 72,815.76, 109,250.34 and 30,706.44

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Solution

The fourth proportional to 72,815.76, 109,250.34 and 30,706.44 is: 46,070.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,815.76 : 109,250.34 = 30,706.44 : x
  2. Step 2: Convert to fraction form
    72,815.76/109,250.34 = 30,706.44/x
  3. Step 3: Cross multiply
    72,815.76x = 109,250.34 × 30,706.44
  4. Step 4: Simplify right side
    72,815.76x = 3,354,689,010.19
  5. Step 5: Solve for x
    x = 3,354,689,010.19/72,815.76
  6. Step 6: Final answer
    x = 46,070.92

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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.