Home / 53,395.32-73,680.05-30,729.90

Finding the Fourth Proportional to 53,395.32, 73,680.05 and 30,729.90

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Solution

The fourth proportional to 53,395.32, 73,680.05 and 30,729.90 is: 42,404.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,395.32 : 73,680.05 = 30,729.90 : x
  2. Step 2: Convert to fraction form
    53,395.32/73,680.05 = 30,729.90/x
  3. Step 3: Cross multiply
    53,395.32x = 73,680.05 × 30,729.90
  4. Step 4: Simplify right side
    53,395.32x = 2,264,180,645.32
  5. Step 5: Solve for x
    x = 2,264,180,645.32/53,395.32
  6. Step 6: Final answer
    x = 42,404.10

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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.