Home / 45,210.56-67,808.10-11,930.98

Finding the Fourth Proportional to 45,210.56, 67,808.10 and 11,930.98

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Solution

The fourth proportional to 45,210.56, 67,808.10 and 11,930.98 is: 17,894.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,210.56 : 67,808.10 = 11,930.98 : x
  2. Step 2: Convert to fraction form
    45,210.56/67,808.10 = 11,930.98/x
  3. Step 3: Cross multiply
    45,210.56x = 67,808.10 × 11,930.98
  4. Step 4: Simplify right side
    45,210.56x = 809,017,084.94
  5. Step 5: Solve for x
    x = 809,017,084.94/45,210.56
  6. Step 6: Final answer
    x = 17,894.43

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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.