Home / 55,455.78-76,520.13-31,582.90

Finding the Fourth Proportional to 55,455.78, 76,520.13 and 31,582.90

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Solution

The fourth proportional to 55,455.78, 76,520.13 and 31,582.90 is: 43,579.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,455.78 : 76,520.13 = 31,582.90 : x
  2. Step 2: Convert to fraction form
    55,455.78/76,520.13 = 31,582.90/x
  3. Step 3: Cross multiply
    55,455.78x = 76,520.13 × 31,582.90
  4. Step 4: Simplify right side
    55,455.78x = 2,416,727,613.78
  5. Step 5: Solve for x
    x = 2,416,727,613.78/55,455.78
  6. Step 6: Final answer
    x = 43,579.36

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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.