Home / 85,152.47-117,512.57-47,427.53

Finding the Fourth Proportional to 85,152.47, 117,512.57 and 47,427.53

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Solution

The fourth proportional to 85,152.47, 117,512.57 and 47,427.53 is: 65,451.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,152.47 : 117,512.57 = 47,427.53 : x
  2. Step 2: Convert to fraction form
    85,152.47/117,512.57 = 47,427.53/x
  3. Step 3: Cross multiply
    85,152.47x = 117,512.57 × 47,427.53
  4. Step 4: Simplify right side
    85,152.47x = 5,573,330,470.06
  5. Step 5: Solve for x
    x = 5,573,330,470.06/85,152.47
  6. Step 6: Final answer
    x = 65,451.19

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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.