Home / 86,021.47-129,032.19-26,862.21

Finding the Fourth Proportional to 86,021.47, 129,032.19 and 26,862.21

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Solution

The fourth proportional to 86,021.47, 129,032.19 and 26,862.21 is: 40,293.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,021.47 : 129,032.19 = 26,862.21 : x
  2. Step 2: Convert to fraction form
    86,021.47/129,032.19 = 26,862.21/x
  3. Step 3: Cross multiply
    86,021.47x = 129,032.19 × 26,862.21
  4. Step 4: Simplify right side
    86,021.47x = 3,466,089,650.23
  5. Step 5: Solve for x
    x = 3,466,089,650.23/86,021.47
  6. Step 6: Final answer
    x = 40,293.31

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Similar ratio
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1.5x scale

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.