Home / 85,153.70-117,515.73-47,427.95

Finding the Fourth Proportional to 85,153.70, 117,515.73 and 47,427.95

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Solution

The fourth proportional to 85,153.70, 117,515.73 and 47,427.95 is: 65,452.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,153.70 : 117,515.73 = 47,427.95 : x
  2. Step 2: Convert to fraction form
    85,153.70/117,515.73 = 47,427.95/x
  3. Step 3: Cross multiply
    85,153.70x = 117,515.73 × 47,427.95
  4. Step 4: Simplify right side
    85,153.70x = 5,573,529,579.07
  5. Step 5: Solve for x
    x = 5,573,529,579.07/85,153.70
  6. Step 6: Final answer
    x = 65,452.59

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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.