Home / 55,729.40-76,906.57-31,856.59

Finding the Fourth Proportional to 55,729.40, 76,906.57 and 31,856.59

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Solution

The fourth proportional to 55,729.40, 76,906.57 and 31,856.59 is: 43,962.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,729.40 : 76,906.57 = 31,856.59 : x
  2. Step 2: Convert to fraction form
    55,729.40/76,906.57 = 31,856.59/x
  3. Step 3: Cross multiply
    55,729.40x = 76,906.57 × 31,856.59
  4. Step 4: Simplify right side
    55,729.40x = 2,449,980,909.51
  5. Step 5: Solve for x
    x = 2,449,980,909.51/55,729.40
  6. Step 6: Final answer
    x = 43,962.09

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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.