Home / 72,667.35-100,280.04-40,841.64

Finding the Fourth Proportional to 72,667.35, 100,280.04 and 40,841.64

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Solution

The fourth proportional to 72,667.35, 100,280.04 and 40,841.64 is: 56,360.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,667.35 : 100,280.04 = 40,841.64 : x
  2. Step 2: Convert to fraction form
    72,667.35/100,280.04 = 40,841.64/x
  3. Step 3: Cross multiply
    72,667.35x = 100,280.04 × 40,841.64
  4. Step 4: Simplify right side
    72,667.35x = 4,095,601,292.87
  5. Step 5: Solve for x
    x = 4,095,601,292.87/72,667.35
  6. Step 6: Final answer
    x = 56,360.96

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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.