Home / 77,391.45-106,792.74-43,401.33

Finding the Fourth Proportional to 77,391.45, 106,792.74 and 43,401.33

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Solution

The fourth proportional to 77,391.45, 106,792.74 and 43,401.33 is: 59,889.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,391.45 : 106,792.74 = 43,401.33 : x
  2. Step 2: Convert to fraction form
    77,391.45/106,792.74 = 43,401.33/x
  3. Step 3: Cross multiply
    77,391.45x = 106,792.74 × 43,401.33
  4. Step 4: Simplify right side
    77,391.45x = 4,634,946,950.34
  5. Step 5: Solve for x
    x = 4,634,946,950.34/77,391.45
  6. Step 6: Final answer
    x = 59,889.65

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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.