Home / 85,348.08-117,780.48-47,622.42

Finding the Fourth Proportional to 85,348.08, 117,780.48 and 47,622.42

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Solution

The fourth proportional to 85,348.08, 117,780.48 and 47,622.42 is: 65,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,348.08 : 117,780.48 = 47,622.42 : x
  2. Step 2: Convert to fraction form
    85,348.08/117,780.48 = 47,622.42/x
  3. Step 3: Cross multiply
    85,348.08x = 117,780.48 × 47,622.42
  4. Step 4: Simplify right side
    85,348.08x = 5,608,991,486.36
  5. Step 5: Solve for x
    x = 5,608,991,486.36/85,348.08
  6. Step 6: Final answer
    x = 65,719.01

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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.