Home / 45,986.90-68,969.40-12,706.23

Finding the Fourth Proportional to 45,986.90, 68,969.40 and 12,706.23

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Solution

The fourth proportional to 45,986.90, 68,969.40 and 12,706.23 is: 19,056.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,986.90 : 68,969.40 = 12,706.23 : x
  2. Step 2: Convert to fraction form
    45,986.90/68,969.40 = 12,706.23/x
  3. Step 3: Cross multiply
    45,986.90x = 68,969.40 × 12,706.23
  4. Step 4: Simplify right side
    45,986.90x = 876,341,059.36
  5. Step 5: Solve for x
    x = 876,341,059.36/45,986.90
  6. Step 6: Final answer
    x = 19,056.32

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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.