Home / 90,455.03-124,811.84-54,621.03

Finding the Fourth Proportional to 90,455.03, 124,811.84 and 54,621.03

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Solution

The fourth proportional to 90,455.03, 124,811.84 and 54,621.03 is: 75,367.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,455.03 : 124,811.84 = 54,621.03 : x
  2. Step 2: Convert to fraction form
    90,455.03/124,811.84 = 54,621.03/x
  3. Step 3: Cross multiply
    90,455.03x = 124,811.84 × 54,621.03
  4. Step 4: Simplify right side
    90,455.03x = 6,817,351,393.55
  5. Step 5: Solve for x
    x = 6,817,351,393.55/90,455.03
  6. Step 6: Final answer
    x = 75,367.30

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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.