Home / 71,271.24-98,352.84-39,440.12

Finding the Fourth Proportional to 71,271.24, 98,352.84 and 39,440.12

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Solution

The fourth proportional to 71,271.24, 98,352.84 and 39,440.12 is: 54,426.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,271.24 : 98,352.84 = 39,440.12 : x
  2. Step 2: Convert to fraction form
    71,271.24/98,352.84 = 39,440.12/x
  3. Step 3: Cross multiply
    71,271.24x = 98,352.84 × 39,440.12
  4. Step 4: Simplify right side
    71,271.24x = 3,879,047,811.94
  5. Step 5: Solve for x
    x = 3,879,047,811.94/71,271.24
  6. Step 6: Final answer
    x = 54,426.55

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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.