Home / 65,736.24-90,734.60-38,888.08

Finding the Fourth Proportional to 65,736.24, 90,734.60 and 38,888.08

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Solution

The fourth proportional to 65,736.24, 90,734.60 and 38,888.08 is: 53,676.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,736.24 : 90,734.60 = 38,888.08 : x
  2. Step 2: Convert to fraction form
    65,736.24/90,734.60 = 38,888.08/x
  3. Step 3: Cross multiply
    65,736.24x = 90,734.60 × 38,888.08
  4. Step 4: Simplify right side
    65,736.24x = 3,528,494,383.57
  5. Step 5: Solve for x
    x = 3,528,494,383.57/65,736.24
  6. Step 6: Final answer
    x = 53,676.55

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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.