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Finding the Fourth Proportional to 85,254.68, 117,648.76 and 47,015.84

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Solution

The fourth proportional to 85,254.68, 117,648.76 and 47,015.84 is: 64,880.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,254.68 : 117,648.76 = 47,015.84 : x
  2. Step 2: Convert to fraction form
    85,254.68/117,648.76 = 47,015.84/x
  3. Step 3: Cross multiply
    85,254.68x = 117,648.76 × 47,015.84
  4. Step 4: Simplify right side
    85,254.68x = 5,531,355,276.36
  5. Step 5: Solve for x
    x = 5,531,355,276.36/85,254.68
  6. Step 6: Final answer
    x = 64,880.37

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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.