Home / 71,328.09-98,432.69-39,496.98

Finding the Fourth Proportional to 71,328.09, 98,432.69 and 39,496.98

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Solution

The fourth proportional to 71,328.09, 98,432.69 and 39,496.98 is: 54,505.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,328.09 : 98,432.69 = 39,496.98 : x
  2. Step 2: Convert to fraction form
    71,328.09/98,432.69 = 39,496.98/x
  3. Step 3: Cross multiply
    71,328.09x = 98,432.69 × 39,496.98
  4. Step 4: Simplify right side
    71,328.09x = 3,887,794,308.03
  5. Step 5: Solve for x
    x = 3,887,794,308.03/71,328.09
  6. Step 6: Final answer
    x = 54,505.80

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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.