Home / 72,194.04-99,628.02-40,363.56

Finding the Fourth Proportional to 72,194.04, 99,628.02 and 40,363.56

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Solution

The fourth proportional to 72,194.04, 99,628.02 and 40,363.56 is: 55,701.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,194.04 : 99,628.02 = 40,363.56 : x
  2. Step 2: Convert to fraction form
    72,194.04/99,628.02 = 40,363.56/x
  3. Step 3: Cross multiply
    72,194.04x = 99,628.02 × 40,363.56
  4. Step 4: Simplify right side
    72,194.04x = 4,021,341,562.95
  5. Step 5: Solve for x
    x = 4,021,341,562.95/72,194.04
  6. Step 6: Final answer
    x = 55,701.85

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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.