Home / 72,167.92-99,596.40-40,338.16

Finding the Fourth Proportional to 72,167.92, 99,596.40 and 40,338.16

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Solution

The fourth proportional to 72,167.92, 99,596.40 and 40,338.16 is: 55,669.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,167.92 : 99,596.40 = 40,338.16 : x
  2. Step 2: Convert to fraction form
    72,167.92/99,596.40 = 40,338.16/x
  3. Step 3: Cross multiply
    72,167.92x = 99,596.40 × 40,338.16
  4. Step 4: Simplify right side
    72,167.92x = 4,017,535,518.62
  5. Step 5: Solve for x
    x = 4,017,535,518.62/72,167.92
  6. Step 6: Final answer
    x = 55,669.27

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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.