Home / 85,218.51-117,601.50-46,978.68

Finding the Fourth Proportional to 85,218.51, 117,601.50 and 46,978.68

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Solution

The fourth proportional to 85,218.51, 117,601.50 and 46,978.68 is: 64,830.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,218.51 : 117,601.50 = 46,978.68 : x
  2. Step 2: Convert to fraction form
    85,218.51/117,601.50 = 46,978.68/x
  3. Step 3: Cross multiply
    85,218.51x = 117,601.50 × 46,978.68
  4. Step 4: Simplify right side
    85,218.51x = 5,524,763,236.02
  5. Step 5: Solve for x
    x = 5,524,763,236.02/85,218.51
  6. Step 6: Final answer
    x = 64,830.55

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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.