Home / 71,048.06-98,039.32-39,214.90

Finding the Fourth Proportional to 71,048.06, 98,039.32 and 39,214.90

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Solution

The fourth proportional to 71,048.06, 98,039.32 and 39,214.90 is: 54,112.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,048.06 : 98,039.32 = 39,214.90 : x
  2. Step 2: Convert to fraction form
    71,048.06/98,039.32 = 39,214.90/x
  3. Step 3: Cross multiply
    71,048.06x = 98,039.32 × 39,214.90
  4. Step 4: Simplify right side
    71,048.06x = 3,844,602,129.87
  5. Step 5: Solve for x
    x = 3,844,602,129.87/71,048.06
  6. Step 6: Final answer
    x = 54,112.70

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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.