Home / 85,800.32-118,410.56-51,816.96

Finding the Fourth Proportional to 85,800.32, 118,410.56 and 51,816.96

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Solution

The fourth proportional to 85,800.32, 118,410.56 and 51,816.96 is: 71,511.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,800.32 : 118,410.56 = 51,816.96 : x
  2. Step 2: Convert to fraction form
    85,800.32/118,410.56 = 51,816.96/x
  3. Step 3: Cross multiply
    85,800.32x = 118,410.56 × 51,816.96
  4. Step 4: Simplify right side
    85,800.32x = 6,135,675,251.10
  5. Step 5: Solve for x
    x = 6,135,675,251.10/85,800.32
  6. Step 6: Final answer
    x = 71,511.10

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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.