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Finding the Fourth Proportional to 86,862.96, 130,334.40 and 60,249.60

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Solution

The fourth proportional to 86,862.96, 130,334.40 and 60,249.60 is: 90,402.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,862.96 : 130,334.40 = 60,249.60 : x
  2. Step 2: Convert to fraction form
    86,862.96/130,334.40 = 60,249.60/x
  3. Step 3: Cross multiply
    86,862.96x = 130,334.40 × 60,249.60
  4. Step 4: Simplify right side
    86,862.96x = 7,852,595,466.24
  5. Step 5: Solve for x
    x = 7,852,595,466.24/86,862.96
  6. Step 6: Final answer
    x = 90,402.12

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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.