Home / 72,169.62-99,596.25-40,337.70

Finding the Fourth Proportional to 72,169.62, 99,596.25 and 40,337.70

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Solution

The fourth proportional to 72,169.62, 99,596.25 and 40,337.70 is: 55,667.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,169.62 : 99,596.25 = 40,337.70 : x
  2. Step 2: Convert to fraction form
    72,169.62/99,596.25 = 40,337.70/x
  3. Step 3: Cross multiply
    72,169.62x = 99,596.25 × 40,337.70
  4. Step 4: Simplify right side
    72,169.62x = 4,017,483,653.63
  5. Step 5: Solve for x
    x = 4,017,483,653.63/72,169.62
  6. Step 6: Final answer
    x = 55,667.24

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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.