Home / 85,373.39-117,830.70-50,920.33

Finding the Fourth Proportional to 85,373.39, 117,830.70 and 50,920.33

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Solution

The fourth proportional to 85,373.39, 117,830.70 and 50,920.33 is: 70,279.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,373.39 : 117,830.70 = 50,920.33 : x
  2. Step 2: Convert to fraction form
    85,373.39/117,830.70 = 50,920.33/x
  3. Step 3: Cross multiply
    85,373.39x = 117,830.70 × 50,920.33
  4. Step 4: Simplify right side
    85,373.39x = 5,999,978,128.13
  5. Step 5: Solve for x
    x = 5,999,978,128.13/85,373.39
  6. Step 6: Final answer
    x = 70,279.25

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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.