Home / 87,819.48-121,145.23-53,835.93

Finding the Fourth Proportional to 87,819.48, 121,145.23 and 53,835.93

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Solution

The fourth proportional to 87,819.48, 121,145.23 and 53,835.93 is: 74,265.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,819.48 : 121,145.23 = 53,835.93 : x
  2. Step 2: Convert to fraction form
    87,819.48/121,145.23 = 53,835.93/x
  3. Step 3: Cross multiply
    87,819.48x = 121,145.23 × 53,835.93
  4. Step 4: Simplify right side
    87,819.48x = 6,521,966,122.11
  5. Step 5: Solve for x
    x = 6,521,966,122.11/87,819.48
  6. Step 6: Final answer
    x = 74,265.60

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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.