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Finding the Fourth Proportional to 86,158.72, 118,905.06 and 50,352.67

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Solution

The fourth proportional to 86,158.72, 118,905.06 and 50,352.67 is: 69,490.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,158.72 : 118,905.06 = 50,352.67 : x
  2. Step 2: Convert to fraction form
    86,158.72/118,905.06 = 50,352.67/x
  3. Step 3: Cross multiply
    86,158.72x = 118,905.06 × 50,352.67
  4. Step 4: Simplify right side
    86,158.72x = 5,987,187,247.51
  5. Step 5: Solve for x
    x = 5,987,187,247.51/86,158.72
  6. Step 6: Final answer
    x = 69,490.21

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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.