Home / 78,632.04-108,499.92-45,091.56

Finding the Fourth Proportional to 78,632.04, 108,499.92 and 45,091.56

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Solution

The fourth proportional to 78,632.04, 108,499.92 and 45,091.56 is: 62,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,632.04 : 108,499.92 = 45,091.56 : x
  2. Step 2: Convert to fraction form
    78,632.04/108,499.92 = 45,091.56/x
  3. Step 3: Cross multiply
    78,632.04x = 108,499.92 × 45,091.56
  4. Step 4: Simplify right side
    78,632.04x = 4,892,430,652.68
  5. Step 5: Solve for x
    x = 4,892,430,652.68/78,632.04
  6. Step 6: Final answer
    x = 62,219.30

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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.