Home / 85,616.63-118,151.37-47,890.88

Finding the Fourth Proportional to 85,616.63, 118,151.37 and 47,890.88

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Solution

The fourth proportional to 85,616.63, 118,151.37 and 47,890.88 is: 66,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,616.63 : 118,151.37 = 47,890.88 : x
  2. Step 2: Convert to fraction form
    85,616.63/118,151.37 = 47,890.88/x
  3. Step 3: Cross multiply
    85,616.63x = 118,151.37 × 47,890.88
  4. Step 4: Simplify right side
    85,616.63x = 5,658,372,491.75
  5. Step 5: Solve for x
    x = 5,658,372,491.75/85,616.63
  6. Step 6: Final answer
    x = 66,089.65

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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.