Home / 85,433.51-117,897.77-47,195.68

Finding the Fourth Proportional to 85,433.51, 117,897.77 and 47,195.68

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Solution

The fourth proportional to 85,433.51, 117,897.77 and 47,195.68 is: 65,129.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,433.51 : 117,897.77 = 47,195.68 : x
  2. Step 2: Convert to fraction form
    85,433.51/117,897.77 = 47,195.68/x
  3. Step 3: Cross multiply
    85,433.51x = 117,897.77 × 47,195.68
  4. Step 4: Simplify right side
    85,433.51x = 5,564,265,425.63
  5. Step 5: Solve for x
    x = 5,564,265,425.63/85,433.51
  6. Step 6: Final answer
    x = 65,129.78

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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.