Home / 85,453.17-117,915.32-47,210.44

Finding the Fourth Proportional to 85,453.17, 117,915.32 and 47,210.44

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Solution

The fourth proportional to 85,453.17, 117,915.32 and 47,210.44 is: 65,144.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,453.17 : 117,915.32 = 47,210.44 : x
  2. Step 2: Convert to fraction form
    85,453.17/117,915.32 = 47,210.44/x
  3. Step 3: Cross multiply
    85,453.17x = 117,915.32 × 47,210.44
  4. Step 4: Simplify right side
    85,453.17x = 5,566,833,719.85
  5. Step 5: Solve for x
    x = 5,566,833,719.85/85,453.17
  6. Step 6: Final answer
    x = 65,144.85

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1.5x scale

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.