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Finding the Fourth Proportional to 77,401.06, 116,153.37 and 28,153.06

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Solution

The fourth proportional to 77,401.06, 116,153.37 and 28,153.06 is: 42,248.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,401.06 : 116,153.37 = 28,153.06 : x
  2. Step 2: Convert to fraction form
    77,401.06/116,153.37 = 28,153.06/x
  3. Step 3: Cross multiply
    77,401.06x = 116,153.37 × 28,153.06
  4. Step 4: Simplify right side
    77,401.06x = 3,270,072,794.81
  5. Step 5: Solve for x
    x = 3,270,072,794.81/77,401.06
  6. Step 6: Final answer
    x = 42,248.42

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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.