Home / 74,119.29-102,284.49-40,127.76

Finding the Fourth Proportional to 74,119.29, 102,284.49 and 40,127.76

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Solution

The fourth proportional to 74,119.29, 102,284.49 and 40,127.76 is: 55,376.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,119.29 : 102,284.49 = 40,127.76 : x
  2. Step 2: Convert to fraction form
    74,119.29/102,284.49 = 40,127.76/x
  3. Step 3: Cross multiply
    74,119.29x = 102,284.49 × 40,127.76
  4. Step 4: Simplify right side
    74,119.29x = 4,104,447,466.44
  5. Step 5: Solve for x
    x = 4,104,447,466.44/74,119.29
  6. Step 6: Final answer
    x = 55,376.24

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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.