Home / 61,784.09-85,234.92-47,418.58

Finding the Fourth Proportional to 61,784.09, 85,234.92 and 47,418.58

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Solution

The fourth proportional to 61,784.09, 85,234.92 and 47,418.58 is: 65,416.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,784.09 : 85,234.92 = 47,418.58 : x
  2. Step 2: Convert to fraction form
    61,784.09/85,234.92 = 47,418.58/x
  3. Step 3: Cross multiply
    61,784.09x = 85,234.92 × 47,418.58
  4. Step 4: Simplify right side
    61,784.09x = 4,041,718,872.81
  5. Step 5: Solve for x
    x = 4,041,718,872.81/61,784.09
  6. Step 6: Final answer
    x = 65,416.82

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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.