Home / 45,972.46-68,902.95-20,978.26

Finding the Fourth Proportional to 45,972.46, 68,902.95 and 20,978.26

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Solution

The fourth proportional to 45,972.46, 68,902.95 and 20,978.26 is: 31,441.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,972.46 : 68,902.95 = 20,978.26 : x
  2. Step 2: Convert to fraction form
    45,972.46/68,902.95 = 20,978.26/x
  3. Step 3: Cross multiply
    45,972.46x = 68,902.95 × 20,978.26
  4. Step 4: Simplify right side
    45,972.46x = 1,445,463,999.87
  5. Step 5: Solve for x
    x = 1,445,463,999.87/45,972.46
  6. Step 6: Final answer
    x = 31,441.95

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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.