Home / 90,351.20-124,683-50,064.08

Finding the Fourth Proportional to 90,351.20, 124,683 and 50,064.08

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Solution

The fourth proportional to 90,351.20, 124,683 and 50,064.08 is: 69,087.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,351.20 : 124,683 = 50,064.08 : x
  2. Step 2: Convert to fraction form
    90,351.20/124,683 = 50,064.08/x
  3. Step 3: Cross multiply
    90,351.20x = 124,683 × 50,064.08
  4. Step 4: Simplify right side
    90,351.20x = 6,242,139,686.64
  5. Step 5: Solve for x
    x = 6,242,139,686.64/90,351.20
  6. Step 6: Final answer
    x = 69,087.51

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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.