Home / 45,770.50-68,653.69-12,490.45

Finding the Fourth Proportional to 45,770.50, 68,653.69 and 12,490.45

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Solution

The fourth proportional to 45,770.50, 68,653.69 and 12,490.45 is: 18,735.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,770.50 : 68,653.69 = 12,490.45 : x
  2. Step 2: Convert to fraction form
    45,770.50/68,653.69 = 12,490.45/x
  3. Step 3: Cross multiply
    45,770.50x = 68,653.69 × 12,490.45
  4. Step 4: Simplify right side
    45,770.50x = 857,515,482.26
  5. Step 5: Solve for x
    x = 857,515,482.26/45,770.50
  6. Step 6: Final answer
    x = 18,735.11

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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.