Home / 55,212.08-76,193.03-31,339.15

Finding the Fourth Proportional to 55,212.08, 76,193.03 and 31,339.15

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Solution

The fourth proportional to 55,212.08, 76,193.03 and 31,339.15 is: 43,248.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,212.08 : 76,193.03 = 31,339.15 : x
  2. Step 2: Convert to fraction form
    55,212.08/76,193.03 = 31,339.15/x
  3. Step 3: Cross multiply
    55,212.08x = 76,193.03 × 31,339.15
  4. Step 4: Simplify right side
    55,212.08x = 2,387,824,796.12
  5. Step 5: Solve for x
    x = 2,387,824,796.12/55,212.08
  6. Step 6: Final answer
    x = 43,248.23

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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.