Home / 71,412.40-98,580.50-49,986.29

Finding the Fourth Proportional to 71,412.40, 98,580.50 and 49,986.29

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Solution

The fourth proportional to 71,412.40, 98,580.50 and 49,986.29 is: 69,003.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,412.40 : 98,580.50 = 49,986.29 : x
  2. Step 2: Convert to fraction form
    71,412.40/98,580.50 = 49,986.29/x
  3. Step 3: Cross multiply
    71,412.40x = 98,580.50 × 49,986.29
  4. Step 4: Simplify right side
    71,412.40x = 4,927,673,707.80
  5. Step 5: Solve for x
    x = 4,927,673,707.80/71,412.40
  6. Step 6: Final answer
    x = 69,003.06

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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.