Home / 86,828.60-130,258.40-30,701.30

Finding the Fourth Proportional to 86,828.60, 130,258.40 and 30,701.30

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Solution

The fourth proportional to 86,828.60, 130,258.40 and 30,701.30 is: 46,057.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,828.60 : 130,258.40 = 30,701.30 : x
  2. Step 2: Convert to fraction form
    86,828.60/130,258.40 = 30,701.30/x
  3. Step 3: Cross multiply
    86,828.60x = 130,258.40 × 30,701.30
  4. Step 4: Simplify right side
    86,828.60x = 3,999,101,899.59
  5. Step 5: Solve for x
    x = 3,999,101,899.59/86,828.60
  6. Step 6: Final answer
    x = 46,057.43

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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.