Home / 71,503.14-98,674.07-39,238.30

Finding the Fourth Proportional to 71,503.14, 98,674.07 and 39,238.30

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Solution

The fourth proportional to 71,503.14, 98,674.07 and 39,238.30 is: 54,148.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,503.14 : 98,674.07 = 39,238.30 : x
  2. Step 2: Convert to fraction form
    71,503.14/98,674.07 = 39,238.30/x
  3. Step 3: Cross multiply
    71,503.14x = 98,674.07 × 39,238.30
  4. Step 4: Simplify right side
    71,503.14x = 3,871,802,318.00
  5. Step 5: Solve for x
    x = 3,871,802,318.00/71,503.14
  6. Step 6: Final answer
    x = 54,148.70

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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.