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Finding the Fourth Proportional to 85,158.96, 127,659.02 and 28,960.67

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Solution

The fourth proportional to 85,158.96, 127,659.02 and 28,960.67 is: 43,413.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,158.96 : 127,659.02 = 28,960.67 : x
  2. Step 2: Convert to fraction form
    85,158.96/127,659.02 = 28,960.67/x
  3. Step 3: Cross multiply
    85,158.96x = 127,659.02 × 28,960.67
  4. Step 4: Simplify right side
    85,158.96x = 3,697,089,967.64
  5. Step 5: Solve for x
    x = 3,697,089,967.64/85,158.96
  6. Step 6: Final answer
    x = 43,413.99

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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.