Home / 87,860.76-121,247.90-47,574.54

Finding the Fourth Proportional to 87,860.76, 121,247.90 and 47,574.54

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Solution

The fourth proportional to 87,860.76, 121,247.90 and 47,574.54 is: 65,652.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,860.76 : 121,247.90 = 47,574.54 : x
  2. Step 2: Convert to fraction form
    87,860.76/121,247.90 = 47,574.54/x
  3. Step 3: Cross multiply
    87,860.76x = 121,247.90 × 47,574.54
  4. Step 4: Simplify right side
    87,860.76x = 5,768,313,068.47
  5. Step 5: Solve for x
    x = 5,768,313,068.47/87,860.76
  6. Step 6: Final answer
    x = 65,652.89

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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.