Home / 57,946.45-86,919.68-31,636.84

Finding the Fourth Proportional to 57,946.45, 86,919.68 and 31,636.84

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Solution

The fourth proportional to 57,946.45, 86,919.68 and 31,636.84 is: 47,455.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,946.45 : 86,919.68 = 31,636.84 : x
  2. Step 2: Convert to fraction form
    57,946.45/86,919.68 = 31,636.84/x
  3. Step 3: Cross multiply
    57,946.45x = 86,919.68 × 31,636.84
  4. Step 4: Simplify right side
    57,946.45x = 2,749,864,009.01
  5. Step 5: Solve for x
    x = 2,749,864,009.01/57,946.45
  6. Step 6: Final answer
    x = 47,455.26

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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.