Home / 85,118.40-117,458.80-46,870.56

Finding the Fourth Proportional to 85,118.40, 117,458.80 and 46,870.56

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Solution

The fourth proportional to 85,118.40, 117,458.80 and 46,870.56 is: 64,678.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,118.40 : 117,458.80 = 46,870.56 : x
  2. Step 2: Convert to fraction form
    85,118.40/117,458.80 = 46,870.56/x
  3. Step 3: Cross multiply
    85,118.40x = 117,458.80 × 46,870.56
  4. Step 4: Simplify right side
    85,118.40x = 5,505,359,732.93
  5. Step 5: Solve for x
    x = 5,505,359,732.93/85,118.40
  6. Step 6: Final answer
    x = 64,678.84

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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.