Home / 86,858.28-119,870.16-48,621.36

Finding the Fourth Proportional to 86,858.28, 119,870.16 and 48,621.36

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Solution

The fourth proportional to 86,858.28, 119,870.16 and 48,621.36 is: 67,100.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,858.28 : 119,870.16 = 48,621.36 : x
  2. Step 2: Convert to fraction form
    86,858.28/119,870.16 = 48,621.36/x
  3. Step 3: Cross multiply
    86,858.28x = 119,870.16 × 48,621.36
  4. Step 4: Simplify right side
    86,858.28x = 5,828,250,202.62
  5. Step 5: Solve for x
    x = 5,828,250,202.62/86,858.28
  6. Step 6: Final answer
    x = 67,100.69

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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.