Home / 51,256.80-76,885.20-14,320.80

Finding the Fourth Proportional to 51,256.80, 76,885.20 and 14,320.80

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Solution

The fourth proportional to 51,256.80, 76,885.20 and 14,320.80 is: 21,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,256.80 : 76,885.20 = 14,320.80 : x
  2. Step 2: Convert to fraction form
    51,256.80/76,885.20 = 14,320.80/x
  3. Step 3: Cross multiply
    51,256.80x = 76,885.20 × 14,320.80
  4. Step 4: Simplify right side
    51,256.80x = 1,101,057,572.16
  5. Step 5: Solve for x
    x = 1,101,057,572.16/51,256.80
  6. Step 6: Final answer
    x = 21,481.20

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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.