Home / 86,862.40-130,336.80-34,273.60

Finding the Fourth Proportional to 86,862.40, 130,336.80 and 34,273.60

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Solution

The fourth proportional to 86,862.40, 130,336.80 and 34,273.60 is: 51,427.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,862.40 : 130,336.80 = 34,273.60 : x
  2. Step 2: Convert to fraction form
    86,862.40/130,336.80 = 34,273.60/x
  3. Step 3: Cross multiply
    86,862.40x = 130,336.80 × 34,273.60
  4. Step 4: Simplify right side
    86,862.40x = 4,467,111,348.48
  5. Step 5: Solve for x
    x = 4,467,111,348.48/86,862.40
  6. Step 6: Final answer
    x = 51,427.45

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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.