Home / 90,277.88-124,583.40-49,991.64

Finding the Fourth Proportional to 90,277.88, 124,583.40 and 49,991.64

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Solution

The fourth proportional to 90,277.88, 124,583.40 and 49,991.64 is: 68,988.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,277.88 : 124,583.40 = 49,991.64 : x
  2. Step 2: Convert to fraction form
    90,277.88/124,583.40 = 49,991.64/x
  3. Step 3: Cross multiply
    90,277.88x = 124,583.40 × 49,991.64
  4. Step 4: Simplify right side
    90,277.88x = 6,228,128,482.78
  5. Step 5: Solve for x
    x = 6,228,128,482.78/90,277.88
  6. Step 6: Final answer
    x = 68,988.42

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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.