Home / 72,616.47-100,210.49-40,350.95

Finding the Fourth Proportional to 72,616.47, 100,210.49 and 40,350.95

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Solution

The fourth proportional to 72,616.47, 100,210.49 and 40,350.95 is: 55,684.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,616.47 : 100,210.49 = 40,350.95 : x
  2. Step 2: Convert to fraction form
    72,616.47/100,210.49 = 40,350.95/x
  3. Step 3: Cross multiply
    72,616.47x = 100,210.49 × 40,350.95
  4. Step 4: Simplify right side
    72,616.47x = 4,043,588,471.47
  5. Step 5: Solve for x
    x = 4,043,588,471.47/72,616.47
  6. Step 6: Final answer
    x = 55,684.18

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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.