Home / 71,267.64-98,351.38-39,439.50

Finding the Fourth Proportional to 71,267.64, 98,351.38 and 39,439.50

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Solution

The fourth proportional to 71,267.64, 98,351.38 and 39,439.50 is: 54,427.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,267.64 : 98,351.38 = 39,439.50 : x
  2. Step 2: Convert to fraction form
    71,267.64/98,351.38 = 39,439.50/x
  3. Step 3: Cross multiply
    71,267.64x = 98,351.38 × 39,439.50
  4. Step 4: Simplify right side
    71,267.64x = 3,878,928,661.15
  5. Step 5: Solve for x
    x = 3,878,928,661.15/71,267.64
  6. Step 6: Final answer
    x = 54,427.63

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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.