Home / 86,948.64-130,423.26-30,788.77

Finding the Fourth Proportional to 86,948.64, 130,423.26 and 30,788.77

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Solution

The fourth proportional to 86,948.64, 130,423.26 and 30,788.77 is: 46,183.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,948.64 : 130,423.26 = 30,788.77 : x
  2. Step 2: Convert to fraction form
    86,948.64/130,423.26 = 30,788.77/x
  3. Step 3: Cross multiply
    86,948.64x = 130,423.26 × 30,788.77
  4. Step 4: Simplify right side
    86,948.64x = 4,015,571,754.79
  5. Step 5: Solve for x
    x = 4,015,571,754.79/86,948.64
  6. Step 6: Final answer
    x = 46,183.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.