Home / 87,284.07-120,465.72-51,478.02

Finding the Fourth Proportional to 87,284.07, 120,465.72 and 51,478.02

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Solution

The fourth proportional to 87,284.07, 120,465.72 and 51,478.02 is: 71,047.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,284.07 : 120,465.72 = 51,478.02 : x
  2. Step 2: Convert to fraction form
    87,284.07/120,465.72 = 51,478.02/x
  3. Step 3: Cross multiply
    87,284.07x = 120,465.72 × 51,478.02
  4. Step 4: Simplify right side
    87,284.07x = 6,201,336,743.47
  5. Step 5: Solve for x
    x = 6,201,336,743.47/87,284.07
  6. Step 6: Final answer
    x = 71,047.75

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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.