Home / 55,661.32-76,808.40-31,784.76

Finding the Fourth Proportional to 55,661.32, 76,808.40 and 31,784.76

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Solution

The fourth proportional to 55,661.32, 76,808.40 and 31,784.76 is: 43,860.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,661.32 : 76,808.40 = 31,784.76 : x
  2. Step 2: Convert to fraction form
    55,661.32/76,808.40 = 31,784.76/x
  3. Step 3: Cross multiply
    55,661.32x = 76,808.40 × 31,784.76
  4. Step 4: Simplify right side
    55,661.32x = 2,441,336,559.98
  5. Step 5: Solve for x
    x = 2,441,336,559.98/55,661.32
  6. Step 6: Final answer
    x = 43,860.56

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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.