Home / 55,688.64-76,854.38-31,814.79

Finding the Fourth Proportional to 55,688.64, 76,854.38 and 31,814.79

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Solution

The fourth proportional to 55,688.64, 76,854.38 and 31,814.79 is: 43,906.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,688.64 : 76,854.38 = 31,814.79 : x
  2. Step 2: Convert to fraction form
    55,688.64/76,854.38 = 31,814.79/x
  3. Step 3: Cross multiply
    55,688.64x = 76,854.38 × 31,814.79
  4. Step 4: Simplify right side
    55,688.64x = 2,445,105,960.28
  5. Step 5: Solve for x
    x = 2,445,105,960.28/55,688.64
  6. Step 6: Final answer
    x = 43,906.73

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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.