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Finding the Fourth Proportional to 86,860.98, 119,870.37 and 51,052.91

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Solution

The fourth proportional to 86,860.98, 119,870.37 and 51,052.91 is: 70,454.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,860.98 : 119,870.37 = 51,052.91 : x
  2. Step 2: Convert to fraction form
    86,860.98/119,870.37 = 51,052.91/x
  3. Step 3: Cross multiply
    86,860.98x = 119,870.37 × 51,052.91
  4. Step 4: Simplify right side
    86,860.98x = 6,119,730,611.92
  5. Step 5: Solve for x
    x = 6,119,730,611.92/86,860.98
  6. Step 6: Final answer
    x = 70,454.31

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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.