Home / 55,107.42-76,041.99-31,228.98

Finding the Fourth Proportional to 55,107.42, 76,041.99 and 31,228.98

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Solution

The fourth proportional to 55,107.42, 76,041.99 and 31,228.98 is: 43,092.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,107.42 : 76,041.99 = 31,228.98 : x
  2. Step 2: Convert to fraction form
    55,107.42/76,041.99 = 31,228.98/x
  3. Step 3: Cross multiply
    55,107.42x = 76,041.99 × 31,228.98
  4. Step 4: Simplify right side
    55,107.42x = 2,374,713,784.87
  5. Step 5: Solve for x
    x = 2,374,713,784.87/55,107.42
  6. Step 6: Final answer
    x = 43,092.45

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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.