Home / 85,621.60-118,157.96-47,382.76

Finding the Fourth Proportional to 85,621.60, 118,157.96 and 47,382.76

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Solution

The fourth proportional to 85,621.60, 118,157.96 and 47,382.76 is: 65,388.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,621.60 : 118,157.96 = 47,382.76 : x
  2. Step 2: Convert to fraction form
    85,621.60/118,157.96 = 47,382.76/x
  3. Step 3: Cross multiply
    85,621.60x = 118,157.96 × 47,382.76
  4. Step 4: Simplify right side
    85,621.60x = 5,598,650,260.77
  5. Step 5: Solve for x
    x = 5,598,650,260.77/85,621.60
  6. Step 6: Final answer
    x = 65,388.29

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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.