Home / 86,506.07-119,378.18-48,780.05

Finding the Fourth Proportional to 86,506.07, 119,378.18 and 48,780.05

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Solution

The fourth proportional to 86,506.07, 119,378.18 and 48,780.05 is: 67,316.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,506.07 : 119,378.18 = 48,780.05 : x
  2. Step 2: Convert to fraction form
    86,506.07/119,378.18 = 48,780.05/x
  3. Step 3: Cross multiply
    86,506.07x = 119,378.18 × 48,780.05
  4. Step 4: Simplify right side
    86,506.07x = 5,823,273,589.31
  5. Step 5: Solve for x
    x = 5,823,273,589.31/86,506.07
  6. Step 6: Final answer
    x = 67,316.36

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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.