Home / 53,989.34-74,404.39-38,855.72

Finding the Fourth Proportional to 53,989.34, 74,404.39 and 38,855.72

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Solution

The fourth proportional to 53,989.34, 74,404.39 and 38,855.72 is: 53,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,989.34 : 74,404.39 = 38,855.72 : x
  2. Step 2: Convert to fraction form
    53,989.34/74,404.39 = 38,855.72/x
  3. Step 3: Cross multiply
    53,989.34x = 74,404.39 × 38,855.72
  4. Step 4: Simplify right side
    53,989.34x = 2,891,036,330.62
  5. Step 5: Solve for x
    x = 2,891,036,330.62/53,989.34
  6. Step 6: Final answer
    x = 53,548.29

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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.