Home / 72,168.81-99,593.33-40,337.03

Finding the Fourth Proportional to 72,168.81, 99,593.33 and 40,337.03

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Solution

The fourth proportional to 72,168.81, 99,593.33 and 40,337.03 is: 55,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,168.81 : 99,593.33 = 40,337.03 : x
  2. Step 2: Convert to fraction form
    72,168.81/99,593.33 = 40,337.03/x
  3. Step 3: Cross multiply
    72,168.81x = 99,593.33 × 40,337.03
  4. Step 4: Simplify right side
    72,168.81x = 4,017,298,440.36
  5. Step 5: Solve for x
    x = 4,017,298,440.36/72,168.81
  6. Step 6: Final answer
    x = 55,665.30

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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.