Home / 55,216.79-76,179.16-31,329.63

Finding the Fourth Proportional to 55,216.79, 76,179.16 and 31,329.63

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Solution

The fourth proportional to 55,216.79, 76,179.16 and 31,329.63 is: 43,223.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,216.79 : 76,179.16 = 31,329.63 : x
  2. Step 2: Convert to fraction form
    55,216.79/76,179.16 = 31,329.63/x
  3. Step 3: Cross multiply
    55,216.79x = 76,179.16 × 31,329.63
  4. Step 4: Simplify right side
    55,216.79x = 2,386,664,896.51
  5. Step 5: Solve for x
    x = 2,386,664,896.51/55,216.79
  6. Step 6: Final answer
    x = 43,223.54

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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.