Home / 87,777.93-121,133.55-47,491.67

Finding the Fourth Proportional to 87,777.93, 121,133.55 and 47,491.67

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Solution

The fourth proportional to 87,777.93, 121,133.55 and 47,491.67 is: 65,538.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,777.93 : 121,133.55 = 47,491.67 : x
  2. Step 2: Convert to fraction form
    87,777.93/121,133.55 = 47,491.67/x
  3. Step 3: Cross multiply
    87,777.93x = 121,133.55 × 47,491.67
  4. Step 4: Simplify right side
    87,777.93x = 5,752,834,582.53
  5. Step 5: Solve for x
    x = 5,752,834,582.53/87,777.93
  6. Step 6: Final answer
    x = 65,538.51

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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.