Home / 92,721.08-139,107.54-30,435.32

Finding the Fourth Proportional to 92,721.08, 139,107.54 and 30,435.32

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Solution

The fourth proportional to 92,721.08, 139,107.54 and 30,435.32 is: 45,661.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,721.08 : 139,107.54 = 30,435.32 : x
  2. Step 2: Convert to fraction form
    92,721.08/139,107.54 = 30,435.32/x
  3. Step 3: Cross multiply
    92,721.08x = 139,107.54 × 30,435.32
  4. Step 4: Simplify right side
    92,721.08x = 4,233,782,494.31
  5. Step 5: Solve for x
    x = 4,233,782,494.31/92,721.08
  6. Step 6: Final answer
    x = 45,661.49

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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.