Home / 71,237.57-98,308.89-39,406.32

Finding the Fourth Proportional to 71,237.57, 98,308.89 and 39,406.32

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Solution

The fourth proportional to 71,237.57, 98,308.89 and 39,406.32 is: 54,381.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,237.57 : 98,308.89 = 39,406.32 : x
  2. Step 2: Convert to fraction form
    71,237.57/98,308.89 = 39,406.32/x
  3. Step 3: Cross multiply
    71,237.57x = 98,308.89 × 39,406.32
  4. Step 4: Simplify right side
    71,237.57x = 3,873,991,578.18
  5. Step 5: Solve for x
    x = 3,873,991,578.18/71,237.57
  6. Step 6: Final answer
    x = 54,381.30

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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.