Home / 53,851.16-80,805.90-51,887.72

Finding the Fourth Proportional to 53,851.16, 80,805.90 and 51,887.72

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Solution

The fourth proportional to 53,851.16, 80,805.90 and 51,887.72 is: 77,859.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,851.16 : 80,805.90 = 51,887.72 : x
  2. Step 2: Convert to fraction form
    53,851.16/80,805.90 = 51,887.72/x
  3. Step 3: Cross multiply
    53,851.16x = 80,805.90 × 51,887.72
  4. Step 4: Simplify right side
    53,851.16x = 4,192,833,913.55
  5. Step 5: Solve for x
    x = 4,192,833,913.55/53,851.16
  6. Step 6: Final answer
    x = 77,859.68

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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.