Home / 90,415.68-124,768.32-50,127.36

Finding the Fourth Proportional to 90,415.68, 124,768.32 and 50,127.36

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Solution

The fourth proportional to 90,415.68, 124,768.32 and 50,127.36 is: 69,172.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,415.68 : 124,768.32 = 50,127.36 : x
  2. Step 2: Convert to fraction form
    90,415.68/124,768.32 = 50,127.36/x
  3. Step 3: Cross multiply
    90,415.68x = 124,768.32 × 50,127.36
  4. Step 4: Simplify right side
    90,415.68x = 6,254,306,493.24
  5. Step 5: Solve for x
    x = 6,254,306,493.24/90,415.68
  6. Step 6: Final answer
    x = 69,172.81

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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.