Home / 66,969.32-100,453.97-31,802.36

Finding the Fourth Proportional to 66,969.32, 100,453.97 and 31,802.36

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Solution

The fourth proportional to 66,969.32, 100,453.97 and 31,802.36 is: 47,703.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,969.32 : 100,453.97 = 31,802.36 : x
  2. Step 2: Convert to fraction form
    66,969.32/100,453.97 = 31,802.36/x
  3. Step 3: Cross multiply
    66,969.32x = 100,453.97 × 31,802.36
  4. Step 4: Simplify right side
    66,969.32x = 3,194,672,894.61
  5. Step 5: Solve for x
    x = 3,194,672,894.61/66,969.32
  6. Step 6: Final answer
    x = 47,703.53

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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.