Home / 68,401.36-102,637.56-51,756.44

Finding the Fourth Proportional to 68,401.36, 102,637.56 and 51,756.44

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Solution

The fourth proportional to 68,401.36, 102,637.56 and 51,756.44 is: 77,661.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,401.36 : 102,637.56 = 51,756.44 : x
  2. Step 2: Convert to fraction form
    68,401.36/102,637.56 = 51,756.44/x
  3. Step 3: Cross multiply
    68,401.36x = 102,637.56 × 51,756.44
  4. Step 4: Simplify right side
    68,401.36x = 5,312,154,715.89
  5. Step 5: Solve for x
    x = 5,312,154,715.89/68,401.36
  6. Step 6: Final answer
    x = 77,661.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.