Home / 72,155.48-99,574.26-40,324.37

Finding the Fourth Proportional to 72,155.48, 99,574.26 and 40,324.37

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Solution

The fourth proportional to 72,155.48, 99,574.26 and 40,324.37 is: 55,647.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,155.48 : 99,574.26 = 40,324.37 : x
  2. Step 2: Convert to fraction form
    72,155.48/99,574.26 = 40,324.37/x
  3. Step 3: Cross multiply
    72,155.48x = 99,574.26 × 40,324.37
  4. Step 4: Simplify right side
    72,155.48x = 4,015,269,302.72
  5. Step 5: Solve for x
    x = 4,015,269,302.72/72,155.48
  6. Step 6: Final answer
    x = 55,647.46

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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.