Home / 85,689.37-118,264.68-48,895.66

Finding the Fourth Proportional to 85,689.37, 118,264.68 and 48,895.66

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Solution

The fourth proportional to 85,689.37, 118,264.68 and 48,895.66 is: 67,483.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,689.37 : 118,264.68 = 48,895.66 : x
  2. Step 2: Convert to fraction form
    85,689.37/118,264.68 = 48,895.66/x
  3. Step 3: Cross multiply
    85,689.37x = 118,264.68 × 48,895.66
  4. Step 4: Simplify right side
    85,689.37x = 5,782,629,287.63
  5. Step 5: Solve for x
    x = 5,782,629,287.63/85,689.37
  6. Step 6: Final answer
    x = 67,483.62

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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.