Home / 90,302.50-124,618.35-54,485.58

Finding the Fourth Proportional to 90,302.50, 124,618.35 and 54,485.58

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Solution

The fourth proportional to 90,302.50, 124,618.35 and 54,485.58 is: 75,190.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,302.50 : 124,618.35 = 54,485.58 : x
  2. Step 2: Convert to fraction form
    90,302.50/124,618.35 = 54,485.58/x
  3. Step 3: Cross multiply
    90,302.50x = 124,618.35 × 54,485.58
  4. Step 4: Simplify right side
    90,302.50x = 6,789,903,078.39
  5. Step 5: Solve for x
    x = 6,789,903,078.39/90,302.50
  6. Step 6: Final answer
    x = 75,190.64

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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.