Home / 71,805.12-99,116.64-51,673.92

Finding the Fourth Proportional to 71,805.12, 99,116.64 and 51,673.92

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Solution

The fourth proportional to 71,805.12, 99,116.64 and 51,673.92 is: 71,328.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,805.12 : 99,116.64 = 51,673.92 : x
  2. Step 2: Convert to fraction form
    71,805.12/99,116.64 = 51,673.92/x
  3. Step 3: Cross multiply
    71,805.12x = 99,116.64 × 51,673.92
  4. Step 4: Simplify right side
    71,805.12x = 5,121,745,326.03
  5. Step 5: Solve for x
    x = 5,121,745,326.03/71,805.12
  6. Step 6: Final answer
    x = 71,328.41

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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.