Home / 72,215.40-108,323.10-60,810.60

Finding the Fourth Proportional to 72,215.40, 108,323.10 and 60,810.60

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Solution

The fourth proportional to 72,215.40, 108,323.10 and 60,810.60 is: 91,215.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,215.40 : 108,323.10 = 60,810.60 : x
  2. Step 2: Convert to fraction form
    72,215.40/108,323.10 = 60,810.60/x
  3. Step 3: Cross multiply
    72,215.40x = 108,323.10 × 60,810.60
  4. Step 4: Simplify right side
    72,215.40x = 6,587,192,704.86
  5. Step 5: Solve for x
    x = 6,587,192,704.86/72,215.40
  6. Step 6: Final answer
    x = 91,215.90

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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.