Home / 85,035.38-117,348.89-47,309.63

Finding the Fourth Proportional to 85,035.38, 117,348.89 and 47,309.63

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Solution

The fourth proportional to 85,035.38, 117,348.89 and 47,309.63 is: 65,287.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,035.38 : 117,348.89 = 47,309.63 : x
  2. Step 2: Convert to fraction form
    85,035.38/117,348.89 = 47,309.63/x
  3. Step 3: Cross multiply
    85,035.38x = 117,348.89 × 47,309.63
  4. Step 4: Simplify right side
    85,035.38x = 5,551,731,743.52
  5. Step 5: Solve for x
    x = 5,551,731,743.52/85,035.38
  6. Step 6: Final answer
    x = 65,287.32

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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.