Home / 72,164.84-99,585.63-40,333.95

Finding the Fourth Proportional to 72,164.84, 99,585.63 and 40,333.95

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Solution

The fourth proportional to 72,164.84, 99,585.63 and 40,333.95 is: 55,659.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,164.84 : 99,585.63 = 40,333.95 : x
  2. Step 2: Convert to fraction form
    72,164.84/99,585.63 = 40,333.95/x
  3. Step 3: Cross multiply
    72,164.84x = 99,585.63 × 40,333.95
  4. Step 4: Simplify right side
    72,164.84x = 4,016,681,821.14
  5. Step 5: Solve for x
    x = 4,016,681,821.14/72,164.84
  6. Step 6: Final answer
    x = 55,659.82

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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.