Home / 74,401.75-102,681.30-40,874.23

Finding the Fourth Proportional to 74,401.75, 102,681.30 and 40,874.23

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Solution

The fourth proportional to 74,401.75, 102,681.30 and 40,874.23 is: 56,410.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,401.75 : 102,681.30 = 40,874.23 : x
  2. Step 2: Convert to fraction form
    74,401.75/102,681.30 = 40,874.23/x
  3. Step 3: Cross multiply
    74,401.75x = 102,681.30 × 40,874.23
  4. Step 4: Simplify right side
    74,401.75x = 4,197,019,072.90
  5. Step 5: Solve for x
    x = 4,197,019,072.90/74,401.75
  6. Step 6: Final answer
    x = 56,410.22

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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.