Home / 72,352.04-99,845.66-40,520.25

Finding the Fourth Proportional to 72,352.04, 99,845.66 and 40,520.25

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Solution

The fourth proportional to 72,352.04, 99,845.66 and 40,520.25 is: 55,917.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,352.04 : 99,845.66 = 40,520.25 : x
  2. Step 2: Convert to fraction form
    72,352.04/99,845.66 = 40,520.25/x
  3. Step 3: Cross multiply
    72,352.04x = 99,845.66 × 40,520.25
  4. Step 4: Simplify right side
    72,352.04x = 4,045,771,205.92
  5. Step 5: Solve for x
    x = 4,045,771,205.92/72,352.04
  6. Step 6: Final answer
    x = 55,917.86

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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.