Home / 86,994.16-130,292.94-51,861.20

Finding the Fourth Proportional to 86,994.16, 130,292.94 and 51,861.20

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Solution

The fourth proportional to 86,994.16, 130,292.94 and 51,861.20 is: 77,673.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,994.16 : 130,292.94 = 51,861.20 : x
  2. Step 2: Convert to fraction form
    86,994.16/130,292.94 = 51,861.20/x
  3. Step 3: Cross multiply
    86,994.16x = 130,292.94 × 51,861.20
  4. Step 4: Simplify right side
    86,994.16x = 6,757,148,219.93
  5. Step 5: Solve for x
    x = 6,757,148,219.93/86,994.16
  6. Step 6: Final answer
    x = 77,673.58

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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.