Home / 45,555.64-68,333.43-14,390.89

Finding the Fourth Proportional to 45,555.64, 68,333.43 and 14,390.89

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Solution

The fourth proportional to 45,555.64, 68,333.43 and 14,390.89 is: 21,586.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,555.64 : 68,333.43 = 14,390.89 : x
  2. Step 2: Convert to fraction form
    45,555.64/68,333.43 = 14,390.89/x
  3. Step 3: Cross multiply
    45,555.64x = 68,333.43 × 14,390.89
  4. Step 4: Simplify right side
    45,555.64x = 983,378,874.45
  5. Step 5: Solve for x
    x = 983,378,874.45/45,555.64
  6. Step 6: Final answer
    x = 21,586.33

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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.