Home / 78,270.06-117,315.09-33,852.18

Finding the Fourth Proportional to 78,270.06, 117,315.09 and 33,852.18

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Solution

The fourth proportional to 78,270.06, 117,315.09 and 33,852.18 is: 50,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,270.06 : 117,315.09 = 33,852.18 : x
  2. Step 2: Convert to fraction form
    78,270.06/117,315.09 = 33,852.18/x
  3. Step 3: Cross multiply
    78,270.06x = 117,315.09 × 33,852.18
  4. Step 4: Simplify right side
    78,270.06x = 3,971,371,543.40
  5. Step 5: Solve for x
    x = 3,971,371,543.40/78,270.06
  6. Step 6: Final answer
    x = 50,739.34

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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.