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Finding the Fourth Proportional to 85,534.60, 118,034.58 and 47,809.48

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Solution

The fourth proportional to 85,534.60, 118,034.58 and 47,809.48 is: 65,975.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,534.60 : 118,034.58 = 47,809.48 : x
  2. Step 2: Convert to fraction form
    85,534.60/118,034.58 = 47,809.48/x
  3. Step 3: Cross multiply
    85,534.60x = 118,034.58 × 47,809.48
  4. Step 4: Simplify right side
    85,534.60x = 5,643,171,891.82
  5. Step 5: Solve for x
    x = 5,643,171,891.82/85,534.60
  6. Step 6: Final answer
    x = 65,975.31

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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.