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Finding the Fourth Proportional to 86,957.51, 120,003.29 and 48,719.88

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Solution

The fourth proportional to 86,957.51, 120,003.29 and 48,719.88 is: 67,234.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,957.51 : 120,003.29 = 48,719.88 : x
  2. Step 2: Convert to fraction form
    86,957.51/120,003.29 = 48,719.88/x
  3. Step 3: Cross multiply
    86,957.51x = 120,003.29 × 48,719.88
  4. Step 4: Simplify right side
    86,957.51x = 5,846,545,644.81
  5. Step 5: Solve for x
    x = 5,846,545,644.81/86,957.51
  6. Step 6: Final answer
    x = 67,234.51

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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.