Home / 55,555.24-76,664.32-31,689.64

Finding the Fourth Proportional to 55,555.24, 76,664.32 and 31,689.64

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Solution

The fourth proportional to 55,555.24, 76,664.32 and 31,689.64 is: 43,730.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,555.24 : 76,664.32 = 31,689.64 : x
  2. Step 2: Convert to fraction form
    55,555.24/76,664.32 = 31,689.64/x
  3. Step 3: Cross multiply
    55,555.24x = 76,664.32 × 31,689.64
  4. Step 4: Simplify right side
    55,555.24x = 2,429,464,701.64
  5. Step 5: Solve for x
    x = 2,429,464,701.64/55,555.24
  6. Step 6: Final answer
    x = 43,730.61

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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.