Home / 86,452.96-129,683.40-32,430.55

Finding the Fourth Proportional to 86,452.96, 129,683.40 and 32,430.55

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Solution

The fourth proportional to 86,452.96, 129,683.40 and 32,430.55 is: 48,647.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,452.96 : 129,683.40 = 32,430.55 : x
  2. Step 2: Convert to fraction form
    86,452.96/129,683.40 = 32,430.55/x
  3. Step 3: Cross multiply
    86,452.96x = 129,683.40 × 32,430.55
  4. Step 4: Simplify right side
    86,452.96x = 4,205,703,987.87
  5. Step 5: Solve for x
    x = 4,205,703,987.87/86,452.96
  6. Step 6: Final answer
    x = 48,647.31

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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.