Home / 72,768.62-109,152.93-26,018.66

Finding the Fourth Proportional to 72,768.62, 109,152.93 and 26,018.66

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Solution

The fourth proportional to 72,768.62, 109,152.93 and 26,018.66 is: 39,027.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,768.62 : 109,152.93 = 26,018.66 : x
  2. Step 2: Convert to fraction form
    72,768.62/109,152.93 = 26,018.66/x
  3. Step 3: Cross multiply
    72,768.62x = 109,152.93 × 26,018.66
  4. Step 4: Simplify right side
    72,768.62x = 2,840,012,973.67
  5. Step 5: Solve for x
    x = 2,840,012,973.67/72,768.62
  6. Step 6: Final answer
    x = 39,027.99

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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.