Home / 53,720.06-74,138.10-34,639.56

Finding the Fourth Proportional to 53,720.06, 74,138.10 and 34,639.56

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Solution

The fourth proportional to 53,720.06, 74,138.10 and 34,639.56 is: 47,805.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,720.06 : 74,138.10 = 34,639.56 : x
  2. Step 2: Convert to fraction form
    53,720.06/74,138.10 = 34,639.56/x
  3. Step 3: Cross multiply
    53,720.06x = 74,138.10 × 34,639.56
  4. Step 4: Simplify right side
    53,720.06x = 2,568,110,619.35
  5. Step 5: Solve for x
    x = 2,568,110,619.35/53,720.06
  6. Step 6: Final answer
    x = 47,805.43

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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.