Home / 45,084.18-67,641.81-20,141.45

Finding the Fourth Proportional to 45,084.18, 67,641.81 and 20,141.45

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Solution

The fourth proportional to 45,084.18, 67,641.81 and 20,141.45 is: 30,219.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,084.18 : 67,641.81 = 20,141.45 : x
  2. Step 2: Convert to fraction form
    45,084.18/67,641.81 = 20,141.45/x
  3. Step 3: Cross multiply
    45,084.18x = 67,641.81 × 20,141.45
  4. Step 4: Simplify right side
    45,084.18x = 1,362,403,795.82
  5. Step 5: Solve for x
    x = 1,362,403,795.82/45,084.18
  6. Step 6: Final answer
    x = 30,219.11

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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.