Home / 84,539.23-126,855.52-47,120.37

Finding the Fourth Proportional to 84,539.23, 126,855.52 and 47,120.37

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Solution

The fourth proportional to 84,539.23, 126,855.52 and 47,120.37 is: 70,706.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,539.23 : 126,855.52 = 47,120.37 : x
  2. Step 2: Convert to fraction form
    84,539.23/126,855.52 = 47,120.37/x
  3. Step 3: Cross multiply
    84,539.23x = 126,855.52 × 47,120.37
  4. Step 4: Simplify right side
    84,539.23x = 5,977,478,445.43
  5. Step 5: Solve for x
    x = 5,977,478,445.43/84,539.23
  6. Step 6: Final answer
    x = 70,706.57

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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.