Home / 87,307.52-120,485.20-49,582.56

Finding the Fourth Proportional to 87,307.52, 120,485.20 and 49,582.56

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Solution

The fourth proportional to 87,307.52, 120,485.20 and 49,582.56 is: 68,424.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,307.52 : 120,485.20 = 49,582.56 : x
  2. Step 2: Convert to fraction form
    87,307.52/120,485.20 = 49,582.56/x
  3. Step 3: Cross multiply
    87,307.52x = 120,485.20 × 49,582.56
  4. Step 4: Simplify right side
    87,307.52x = 5,973,964,658.11
  5. Step 5: Solve for x
    x = 5,973,964,658.11/87,307.52
  6. Step 6: Final answer
    x = 68,424.40

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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.