Home / 83,445.48-125,168.20-55,420.26

Finding the Fourth Proportional to 83,445.48, 125,168.20 and 55,420.26

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Solution

The fourth proportional to 83,445.48, 125,168.20 and 55,420.26 is: 83,130.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,445.48 : 125,168.20 = 55,420.26 : x
  2. Step 2: Convert to fraction form
    83,445.48/125,168.20 = 55,420.26/x
  3. Step 3: Cross multiply
    83,445.48x = 125,168.20 × 55,420.26
  4. Step 4: Simplify right side
    83,445.48x = 6,936,853,284.79
  5. Step 5: Solve for x
    x = 6,936,853,284.79/83,445.48
  6. Step 6: Final answer
    x = 83,130.37

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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.