Home / 73,928.02-102,020.70-39,936.50

Finding the Fourth Proportional to 73,928.02, 102,020.70 and 39,936.50

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Solution

The fourth proportional to 73,928.02, 102,020.70 and 39,936.50 is: 55,112.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,928.02 : 102,020.70 = 39,936.50 : x
  2. Step 2: Convert to fraction form
    73,928.02/102,020.70 = 39,936.50/x
  3. Step 3: Cross multiply
    73,928.02x = 102,020.70 × 39,936.50
  4. Step 4: Simplify right side
    73,928.02x = 4,074,349,685.55
  5. Step 5: Solve for x
    x = 4,074,349,685.55/73,928.02
  6. Step 6: Final answer
    x = 55,112.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.