Home / 55,731.02-76,908.81-31,858.21

Finding the Fourth Proportional to 55,731.02, 76,908.81 and 31,858.21

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Solution

The fourth proportional to 55,731.02, 76,908.81 and 31,858.21 is: 43,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,731.02 : 76,908.81 = 31,858.21 : x
  2. Step 2: Convert to fraction form
    55,731.02/76,908.81 = 31,858.21/x
  3. Step 3: Cross multiply
    55,731.02x = 76,908.81 × 31,858.21
  4. Step 4: Simplify right side
    55,731.02x = 2,450,177,019.83
  5. Step 5: Solve for x
    x = 2,450,177,019.83/55,731.02
  6. Step 6: Final answer
    x = 43,964.33

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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.