Home / 57,410.18-78,731.75-55,015.41

Finding the Fourth Proportional to 57,410.18, 78,731.75 and 55,015.41

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Solution

The fourth proportional to 57,410.18, 78,731.75 and 55,015.41 is: 75,447.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,410.18 : 78,731.75 = 55,015.41 : x
  2. Step 2: Convert to fraction form
    57,410.18/78,731.75 = 55,015.41/x
  3. Step 3: Cross multiply
    57,410.18x = 78,731.75 × 55,015.41
  4. Step 4: Simplify right side
    57,410.18x = 4,331,459,231.19
  5. Step 5: Solve for x
    x = 4,331,459,231.19/57,410.18
  6. Step 6: Final answer
    x = 75,447.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.