Home / 87,762.65-121,111.83-47,475.81

Finding the Fourth Proportional to 87,762.65, 121,111.83 and 47,475.81

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Solution

The fourth proportional to 87,762.65, 121,111.83 and 47,475.81 is: 65,516.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,762.65 : 121,111.83 = 47,475.81 : x
  2. Step 2: Convert to fraction form
    87,762.65/121,111.83 = 47,475.81/x
  3. Step 3: Cross multiply
    87,762.65x = 121,111.83 × 47,475.81
  4. Step 4: Simplify right side
    87,762.65x = 5,749,882,229.83
  5. Step 5: Solve for x
    x = 5,749,882,229.83/87,762.65
  6. Step 6: Final answer
    x = 65,516.28

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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.