Home / 51,120.30-76,680.45-14,184.30

Finding the Fourth Proportional to 51,120.30, 76,680.45 and 14,184.30

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Solution

The fourth proportional to 51,120.30, 76,680.45 and 14,184.30 is: 21,276.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,120.30 : 76,680.45 = 14,184.30 : x
  2. Step 2: Convert to fraction form
    51,120.30/76,680.45 = 14,184.30/x
  3. Step 3: Cross multiply
    51,120.30x = 76,680.45 × 14,184.30
  4. Step 4: Simplify right side
    51,120.30x = 1,087,658,506.94
  5. Step 5: Solve for x
    x = 1,087,658,506.94/51,120.30
  6. Step 6: Final answer
    x = 21,276.45

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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.