Home / 45,885.15-68,813.15-31,188.51

Finding the Fourth Proportional to 45,885.15, 68,813.15 and 31,188.51

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Solution

The fourth proportional to 45,885.15, 68,813.15 and 31,188.51 is: 46,772.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,885.15 : 68,813.15 = 31,188.51 : x
  2. Step 2: Convert to fraction form
    45,885.15/68,813.15 = 31,188.51/x
  3. Step 3: Cross multiply
    45,885.15x = 68,813.15 × 31,188.51
  4. Step 4: Simplify right side
    45,885.15x = 2,146,179,460.96
  5. Step 5: Solve for x
    x = 2,146,179,460.96/45,885.15
  6. Step 6: Final answer
    x = 46,772.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.