Home / 100,647.27-138,893.51-57,627.42

Finding the Fourth Proportional to 100,647.27, 138,893.51 and 57,627.42

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Solution

The fourth proportional to 100,647.27, 138,893.51 and 57,627.42 is: 79,526.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,647.27 : 138,893.51 = 57,627.42 : x
  2. Step 2: Convert to fraction form
    100,647.27/138,893.51 = 57,627.42/x
  3. Step 3: Cross multiply
    100,647.27x = 138,893.51 × 57,627.42
  4. Step 4: Simplify right side
    100,647.27x = 8,004,074,636.04
  5. Step 5: Solve for x
    x = 8,004,074,636.04/100,647.27
  6. Step 6: Final answer
    x = 79,526.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.