Home / 84,145.32-126,283.26-31,602.60

Finding the Fourth Proportional to 84,145.32, 126,283.26 and 31,602.60

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Solution

The fourth proportional to 84,145.32, 126,283.26 and 31,602.60 is: 47,428.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,145.32 : 126,283.26 = 31,602.60 : x
  2. Step 2: Convert to fraction form
    84,145.32/126,283.26 = 31,602.60/x
  3. Step 3: Cross multiply
    84,145.32x = 126,283.26 × 31,602.60
  4. Step 4: Simplify right side
    84,145.32x = 3,990,879,352.48
  5. Step 5: Solve for x
    x = 3,990,879,352.48/84,145.32
  6. Step 6: Final answer
    x = 47,428.42

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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.