Home / 71,899.92-99,222.03-40,068.18

Finding the Fourth Proportional to 71,899.92, 99,222.03 and 40,068.18

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Solution

The fourth proportional to 71,899.92, 99,222.03 and 40,068.18 is: 55,294.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,899.92 : 99,222.03 = 40,068.18 : x
  2. Step 2: Convert to fraction form
    71,899.92/99,222.03 = 40,068.18/x
  3. Step 3: Cross multiply
    71,899.92x = 99,222.03 × 40,068.18
  4. Step 4: Simplify right side
    71,899.92x = 3,975,646,158.01
  5. Step 5: Solve for x
    x = 3,975,646,158.01/71,899.92
  6. Step 6: Final answer
    x = 55,294.17

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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.