Home / 85,208.89-117,590.67-47,485.57

Finding the Fourth Proportional to 85,208.89, 117,590.67 and 47,485.57

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Solution

The fourth proportional to 85,208.89, 117,590.67 and 47,485.57 is: 65,531.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,208.89 : 117,590.67 = 47,485.57 : x
  2. Step 2: Convert to fraction form
    85,208.89/117,590.67 = 47,485.57/x
  3. Step 3: Cross multiply
    85,208.89x = 117,590.67 × 47,485.57
  4. Step 4: Simplify right side
    85,208.89x = 5,583,859,991.63
  5. Step 5: Solve for x
    x = 5,583,859,991.63/85,208.89
  6. Step 6: Final answer
    x = 65,531.43

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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.