Home / 86,886.18-119,907.72-48,643.56

Finding the Fourth Proportional to 86,886.18, 119,907.72 and 48,643.56

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Solution

The fourth proportional to 86,886.18, 119,907.72 and 48,643.56 is: 67,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,886.18 : 119,907.72 = 48,643.56 : x
  2. Step 2: Convert to fraction form
    86,886.18/119,907.72 = 48,643.56/x
  3. Step 3: Cross multiply
    86,886.18x = 119,907.72 × 48,643.56
  4. Step 4: Simplify right side
    86,886.18x = 5,832,738,372.28
  5. Step 5: Solve for x
    x = 5,832,738,372.28/86,886.18
  6. Step 6: Final answer
    x = 67,130.80

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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.