Home / 74,014.36-102,142.28-40,480.36

Finding the Fourth Proportional to 74,014.36, 102,142.28 and 40,480.36

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Solution

The fourth proportional to 74,014.36, 102,142.28 and 40,480.36 is: 55,864.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,014.36 : 102,142.28 = 40,480.36 : x
  2. Step 2: Convert to fraction form
    74,014.36/102,142.28 = 40,480.36/x
  3. Step 3: Cross multiply
    74,014.36x = 102,142.28 × 40,480.36
  4. Step 4: Simplify right side
    74,014.36x = 4,134,756,265.62
  5. Step 5: Solve for x
    x = 4,134,756,265.62/74,014.36
  6. Step 6: Final answer
    x = 55,864.24

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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.