Home / 86,811.38-130,068.54-47,396.24

Finding the Fourth Proportional to 86,811.38, 130,068.54 and 47,396.24

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Solution

The fourth proportional to 86,811.38, 130,068.54 and 47,396.24 is: 71,013.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,811.38 : 130,068.54 = 47,396.24 : x
  2. Step 2: Convert to fraction form
    86,811.38/130,068.54 = 47,396.24/x
  3. Step 3: Cross multiply
    86,811.38x = 130,068.54 × 47,396.24
  4. Step 4: Simplify right side
    86,811.38x = 6,164,759,738.29
  5. Step 5: Solve for x
    x = 6,164,759,738.29/86,811.38
  6. Step 6: Final answer
    x = 71,013.27

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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.