Home / 67,728.07-93,465.42-40,865.39

Finding the Fourth Proportional to 67,728.07, 93,465.42 and 40,865.39

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Solution

The fourth proportional to 67,728.07, 93,465.42 and 40,865.39 is: 56,394.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,728.07 : 93,465.42 = 40,865.39 : x
  2. Step 2: Convert to fraction form
    67,728.07/93,465.42 = 40,865.39/x
  3. Step 3: Cross multiply
    67,728.07x = 93,465.42 × 40,865.39
  4. Step 4: Simplify right side
    67,728.07x = 3,819,500,839.81
  5. Step 5: Solve for x
    x = 3,819,500,839.81/67,728.07
  6. Step 6: Final answer
    x = 56,394.65

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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.