Home / 92,928.06-128,239.20-50,485.68

Finding the Fourth Proportional to 92,928.06, 128,239.20 and 50,485.68

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Solution

The fourth proportional to 92,928.06, 128,239.20 and 50,485.68 is: 69,669.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,928.06 : 128,239.20 = 50,485.68 : x
  2. Step 2: Convert to fraction form
    92,928.06/128,239.20 = 50,485.68/x
  3. Step 3: Cross multiply
    92,928.06x = 128,239.20 × 50,485.68
  4. Step 4: Simplify right side
    92,928.06x = 6,474,243,214.66
  5. Step 5: Solve for x
    x = 6,474,243,214.66/92,928.06
  6. Step 6: Final answer
    x = 69,669.41

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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.