Home / 84,685.21-116,857.16-48,886.75

Finding the Fourth Proportional to 84,685.21, 116,857.16 and 48,886.75

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Solution

The fourth proportional to 84,685.21, 116,857.16 and 48,886.75 is: 67,458.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,685.21 : 116,857.16 = 48,886.75 : x
  2. Step 2: Convert to fraction form
    84,685.21/116,857.16 = 48,886.75/x
  3. Step 3: Cross multiply
    84,685.21x = 116,857.16 × 48,886.75
  4. Step 4: Simplify right side
    84,685.21x = 5,712,766,766.63
  5. Step 5: Solve for x
    x = 5,712,766,766.63/84,685.21
  6. Step 6: Final answer
    x = 67,458.85

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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.