Home / 71,705.07-98,955.39-39,441.05

Finding the Fourth Proportional to 71,705.07, 98,955.39 and 39,441.05

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Solution

The fourth proportional to 71,705.07, 98,955.39 and 39,441.05 is: 54,429.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,705.07 : 98,955.39 = 39,441.05 : x
  2. Step 2: Convert to fraction form
    71,705.07/98,955.39 = 39,441.05/x
  3. Step 3: Cross multiply
    71,705.07x = 98,955.39 × 39,441.05
  4. Step 4: Simplify right side
    71,705.07x = 3,902,904,484.76
  5. Step 5: Solve for x
    x = 3,902,904,484.76/71,705.07
  6. Step 6: Final answer
    x = 54,429.97

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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.