Home / 71,288.14-98,376.16-39,455.14

Finding the Fourth Proportional to 71,288.14, 98,376.16 and 39,455.14

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Solution

The fourth proportional to 71,288.14, 98,376.16 and 39,455.14 is: 54,447.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,288.14 : 98,376.16 = 39,455.14 : x
  2. Step 2: Convert to fraction form
    71,288.14/98,376.16 = 39,455.14/x
  3. Step 3: Cross multiply
    71,288.14x = 98,376.16 × 39,455.14
  4. Step 4: Simplify right side
    71,288.14x = 3,881,444,574.94
  5. Step 5: Solve for x
    x = 3,881,444,574.94/71,288.14
  6. Step 6: Final answer
    x = 54,447.27

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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.