Home / 86,381.78-119,208.80-48,145.25

Finding the Fourth Proportional to 86,381.78, 119,208.80 and 48,145.25

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Solution

The fourth proportional to 86,381.78, 119,208.80 and 48,145.25 is: 66,441.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,381.78 : 119,208.80 = 48,145.25 : x
  2. Step 2: Convert to fraction form
    86,381.78/119,208.80 = 48,145.25/x
  3. Step 3: Cross multiply
    86,381.78x = 119,208.80 × 48,145.25
  4. Step 4: Simplify right side
    86,381.78x = 5,739,336,641.43
  5. Step 5: Solve for x
    x = 5,739,336,641.43/86,381.78
  6. Step 6: Final answer
    x = 66,441.52

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1.5x scale

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.