Home / 71,905.32-99,225.81-40,068.27

Finding the Fourth Proportional to 71,905.32, 99,225.81 and 40,068.27

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Solution

The fourth proportional to 71,905.32, 99,225.81 and 40,068.27 is: 55,292.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,905.32 : 99,225.81 = 40,068.27 : x
  2. Step 2: Convert to fraction form
    71,905.32/99,225.81 = 40,068.27/x
  3. Step 3: Cross multiply
    71,905.32x = 99,225.81 × 40,068.27
  4. Step 4: Simplify right side
    71,905.32x = 3,975,806,546.05
  5. Step 5: Solve for x
    x = 3,975,806,546.05/71,905.32
  6. Step 6: Final answer
    x = 55,292.24

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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.