Home / 72,922.05-100,645.44-42,705.57

Finding the Fourth Proportional to 72,922.05, 100,645.44 and 42,705.57

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Solution

The fourth proportional to 72,922.05, 100,645.44 and 42,705.57 is: 58,941.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,922.05 : 100,645.44 = 42,705.57 : x
  2. Step 2: Convert to fraction form
    72,922.05/100,645.44 = 42,705.57/x
  3. Step 3: Cross multiply
    72,922.05x = 100,645.44 × 42,705.57
  4. Step 4: Simplify right side
    72,922.05x = 4,298,120,883.10
  5. Step 5: Solve for x
    x = 4,298,120,883.10/72,922.05
  6. Step 6: Final answer
    x = 58,941.31

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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.