Home / 90,492.60-124,878.69-50,205.36

Finding the Fourth Proportional to 90,492.60, 124,878.69 and 50,205.36

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Solution

The fourth proportional to 90,492.60, 124,878.69 and 50,205.36 is: 69,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,492.60 : 124,878.69 = 50,205.36 : x
  2. Step 2: Convert to fraction form
    90,492.60/124,878.69 = 50,205.36/x
  3. Step 3: Cross multiply
    90,492.60x = 124,878.69 × 50,205.36
  4. Step 4: Simplify right side
    90,492.60x = 6,269,579,587.78
  5. Step 5: Solve for x
    x = 6,269,579,587.78/90,492.60
  6. Step 6: Final answer
    x = 69,282.79

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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.