Home / 71,895.96-99,215.08-40,064.16

Finding the Fourth Proportional to 71,895.96, 99,215.08 and 40,064.16

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Solution

The fourth proportional to 71,895.96, 99,215.08 and 40,064.16 is: 55,287.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,895.96 : 99,215.08 = 40,064.16 : x
  2. Step 2: Convert to fraction form
    71,895.96/99,215.08 = 40,064.16/x
  3. Step 3: Cross multiply
    71,895.96x = 99,215.08 × 40,064.16
  4. Step 4: Simplify right side
    71,895.96x = 3,974,968,839.53
  5. Step 5: Solve for x
    x = 3,974,968,839.53/71,895.96
  6. Step 6: Final answer
    x = 55,287.79

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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.