Home / 67,195.78-92,740.38-40,353.08

Finding the Fourth Proportional to 67,195.78, 92,740.38 and 40,353.08

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Solution

The fourth proportional to 67,195.78, 92,740.38 and 40,353.08 is: 55,693.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,195.78 : 92,740.38 = 40,353.08 : x
  2. Step 2: Convert to fraction form
    67,195.78/92,740.38 = 40,353.08/x
  3. Step 3: Cross multiply
    67,195.78x = 92,740.38 × 40,353.08
  4. Step 4: Simplify right side
    67,195.78x = 3,742,359,973.37
  5. Step 5: Solve for x
    x = 3,742,359,973.37/67,195.78
  6. Step 6: Final answer
    x = 55,693.38

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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.