Home / 76,056.20-113,973.36-42,785.54

Finding the Fourth Proportional to 76,056.20, 113,973.36 and 42,785.54

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Solution

The fourth proportional to 76,056.20, 113,973.36 and 42,785.54 is: 64,115.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,056.20 : 113,973.36 = 42,785.54 : x
  2. Step 2: Convert to fraction form
    76,056.20/113,973.36 = 42,785.54/x
  3. Step 3: Cross multiply
    76,056.20x = 113,973.36 × 42,785.54
  4. Step 4: Simplify right side
    76,056.20x = 4,876,411,753.21
  5. Step 5: Solve for x
    x = 4,876,411,753.21/76,056.20
  6. Step 6: Final answer
    x = 64,115.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.