Home / 55,634.40-83,451.60-40,762.80

Finding the Fourth Proportional to 55,634.40, 83,451.60 and 40,762.80

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Solution

The fourth proportional to 55,634.40, 83,451.60 and 40,762.80 is: 61,144.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,634.40 : 83,451.60 = 40,762.80 : x
  2. Step 2: Convert to fraction form
    55,634.40/83,451.60 = 40,762.80/x
  3. Step 3: Cross multiply
    55,634.40x = 83,451.60 × 40,762.80
  4. Step 4: Simplify right side
    55,634.40x = 3,401,720,880.48
  5. Step 5: Solve for x
    x = 3,401,720,880.48/55,634.40
  6. Step 6: Final answer
    x = 61,144.20

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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.