Home / 87,900.72-121,303.57-47,614.48

Finding the Fourth Proportional to 87,900.72, 121,303.57 and 47,614.48

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Solution

The fourth proportional to 87,900.72, 121,303.57 and 47,614.48 is: 65,708.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,900.72 : 121,303.57 = 47,614.48 : x
  2. Step 2: Convert to fraction form
    87,900.72/121,303.57 = 47,614.48/x
  3. Step 3: Cross multiply
    87,900.72x = 121,303.57 × 47,614.48
  4. Step 4: Simplify right side
    87,900.72x = 5,775,806,315.58
  5. Step 5: Solve for x
    x = 5,775,806,315.58/87,900.72
  6. Step 6: Final answer
    x = 65,708.30

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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.