Home / 86,317.61-119,109.78-48,075.86

Finding the Fourth Proportional to 86,317.61, 119,109.78 and 48,075.86

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Solution

The fourth proportional to 86,317.61, 119,109.78 and 48,075.86 is: 66,339.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,317.61 : 119,109.78 = 48,075.86 : x
  2. Step 2: Convert to fraction form
    86,317.61/119,109.78 = 48,075.86/x
  3. Step 3: Cross multiply
    86,317.61x = 119,109.78 × 48,075.86
  4. Step 4: Simplify right side
    86,317.61x = 5,726,305,405.69
  5. Step 5: Solve for x
    x = 5,726,305,405.69/86,317.61
  6. Step 6: Final answer
    x = 66,339.95

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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.