Home / 53,296.72-79,921.86-28,330.78

Finding the Fourth Proportional to 53,296.72, 79,921.86 and 28,330.78

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Solution

The fourth proportional to 53,296.72, 79,921.86 and 28,330.78 is: 42,483.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,296.72 : 79,921.86 = 28,330.78 : x
  2. Step 2: Convert to fraction form
    53,296.72/79,921.86 = 28,330.78/x
  3. Step 3: Cross multiply
    53,296.72x = 79,921.86 × 28,330.78
  4. Step 4: Simplify right side
    53,296.72x = 2,264,248,632.85
  5. Step 5: Solve for x
    x = 2,264,248,632.85/53,296.72
  6. Step 6: Final answer
    x = 42,483.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.