Home / 85,153.60-117,508.80-47,427.04

Finding the Fourth Proportional to 85,153.60, 117,508.80 and 47,427.04

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Solution

The fourth proportional to 85,153.60, 117,508.80 and 47,427.04 is: 65,447.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,153.60 : 117,508.80 = 47,427.04 : x
  2. Step 2: Convert to fraction form
    85,153.60/117,508.80 = 47,427.04/x
  3. Step 3: Cross multiply
    85,153.60x = 117,508.80 × 47,427.04
  4. Step 4: Simplify right side
    85,153.60x = 5,573,094,557.95
  5. Step 5: Solve for x
    x = 5,573,094,557.95/85,153.60
  6. Step 6: Final answer
    x = 65,447.55

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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.