Home / 51,042.40-76,558.20-15,980.20

Finding the Fourth Proportional to 51,042.40, 76,558.20 and 15,980.20

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Solution

The fourth proportional to 51,042.40, 76,558.20 and 15,980.20 is: 23,968.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,042.40 : 76,558.20 = 15,980.20 : x
  2. Step 2: Convert to fraction form
    51,042.40/76,558.20 = 15,980.20/x
  3. Step 3: Cross multiply
    51,042.40x = 76,558.20 × 15,980.20
  4. Step 4: Simplify right side
    51,042.40x = 1,223,415,347.64
  5. Step 5: Solve for x
    x = 1,223,415,347.64/51,042.40
  6. Step 6: Final answer
    x = 23,968.61

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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.