Home / 70,770.16-106,173.60-20,852.02

Finding the Fourth Proportional to 70,770.16, 106,173.60 and 20,852.02

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Solution

The fourth proportional to 70,770.16, 106,173.60 and 20,852.02 is: 31,283.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,770.16 : 106,173.60 = 20,852.02 : x
  2. Step 2: Convert to fraction form
    70,770.16/106,173.60 = 20,852.02/x
  3. Step 3: Cross multiply
    70,770.16x = 106,173.60 × 20,852.02
  4. Step 4: Simplify right side
    70,770.16x = 2,213,934,030.67
  5. Step 5: Solve for x
    x = 2,213,934,030.67/70,770.16
  6. Step 6: Final answer
    x = 31,283.44

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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.