Home / 71,328.46-98,433.75-39,499.42

Finding the Fourth Proportional to 71,328.46, 98,433.75 and 39,499.42

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Solution

The fourth proportional to 71,328.46, 98,433.75 and 39,499.42 is: 54,509.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,328.46 : 98,433.75 = 39,499.42 : x
  2. Step 2: Convert to fraction form
    71,328.46/98,433.75 = 39,499.42/x
  3. Step 3: Cross multiply
    71,328.46x = 98,433.75 × 39,499.42
  4. Step 4: Simplify right side
    71,328.46x = 3,888,076,033.43
  5. Step 5: Solve for x
    x = 3,888,076,033.43/71,328.46
  6. Step 6: Final answer
    x = 54,509.46

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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.