Home / 51,103.85-76,649.93-13,666.84

Finding the Fourth Proportional to 51,103.85, 76,649.93 and 13,666.84

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Solution

The fourth proportional to 51,103.85, 76,649.93 and 13,666.84 is: 20,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,103.85 : 76,649.93 = 13,666.84 : x
  2. Step 2: Convert to fraction form
    51,103.85/76,649.93 = 13,666.84/x
  3. Step 3: Cross multiply
    51,103.85x = 76,649.93 × 13,666.84
  4. Step 4: Simplify right side
    51,103.85x = 1,047,562,329.32
  5. Step 5: Solve for x
    x = 1,047,562,329.32/51,103.85
  6. Step 6: Final answer
    x = 20,498.70

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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.