Home / 51,435.49-70,972.05-30,219.16

Finding the Fourth Proportional to 51,435.49, 70,972.05 and 30,219.16

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Solution

The fourth proportional to 51,435.49, 70,972.05 and 30,219.16 is: 41,697.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,435.49 : 70,972.05 = 30,219.16 : x
  2. Step 2: Convert to fraction form
    51,435.49/70,972.05 = 30,219.16/x
  3. Step 3: Cross multiply
    51,435.49x = 70,972.05 × 30,219.16
  4. Step 4: Simplify right side
    51,435.49x = 2,144,715,734.48
  5. Step 5: Solve for x
    x = 2,144,715,734.48/51,435.49
  6. Step 6: Final answer
    x = 41,697.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.