Home / 77,116.86-106,559.82-60,163.56

Finding the Fourth Proportional to 77,116.86, 106,559.82 and 60,163.56

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Solution

The fourth proportional to 77,116.86, 106,559.82 and 60,163.56 is: 83,133.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,116.86 : 106,559.82 = 60,163.56 : x
  2. Step 2: Convert to fraction form
    77,116.86/106,559.82 = 60,163.56/x
  3. Step 3: Cross multiply
    77,116.86x = 106,559.82 × 60,163.56
  4. Step 4: Simplify right side
    77,116.86x = 6,411,018,124.16
  5. Step 5: Solve for x
    x = 6,411,018,124.16/77,116.86
  6. Step 6: Final answer
    x = 83,133.81

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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.