Home / 55,374.84-76,410.14-31,172.75

Finding the Fourth Proportional to 55,374.84, 76,410.14 and 31,172.75

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Solution

The fourth proportional to 55,374.84, 76,410.14 and 31,172.75 is: 43,014.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,374.84 : 76,410.14 = 31,172.75 : x
  2. Step 2: Convert to fraction form
    55,374.84/76,410.14 = 31,172.75/x
  3. Step 3: Cross multiply
    55,374.84x = 76,410.14 × 31,172.75
  4. Step 4: Simplify right side
    55,374.84x = 2,381,913,940.31
  5. Step 5: Solve for x
    x = 2,381,913,940.31/55,374.84
  6. Step 6: Final answer
    x = 43,014.37

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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.