Home / 72,340.09-108,510.14-30,197.18

Finding the Fourth Proportional to 72,340.09, 108,510.14 and 30,197.18

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Solution

The fourth proportional to 72,340.09, 108,510.14 and 30,197.18 is: 45,295.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,340.09 : 108,510.14 = 30,197.18 : x
  2. Step 2: Convert to fraction form
    72,340.09/108,510.14 = 30,197.18/x
  3. Step 3: Cross multiply
    72,340.09x = 108,510.14 × 30,197.18
  4. Step 4: Simplify right side
    72,340.09x = 3,276,700,349.69
  5. Step 5: Solve for x
    x = 3,276,700,349.69/72,340.09
  6. Step 6: Final answer
    x = 45,295.78

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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.