Home / 72,310.20-99,785.16-42,096.39

Finding the Fourth Proportional to 72,310.20, 99,785.16 and 42,096.39

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Solution

The fourth proportional to 72,310.20, 99,785.16 and 42,096.39 is: 58,091.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,310.20 : 99,785.16 = 42,096.39 : x
  2. Step 2: Convert to fraction form
    72,310.20/99,785.16 = 42,096.39/x
  3. Step 3: Cross multiply
    72,310.20x = 99,785.16 × 42,096.39
  4. Step 4: Simplify right side
    72,310.20x = 4,200,595,011.57
  5. Step 5: Solve for x
    x = 4,200,595,011.57/72,310.20
  6. Step 6: Final answer
    x = 58,091.32

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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.