Home / 71,242.03-98,305.50-39,406.60

Finding the Fourth Proportional to 71,242.03, 98,305.50 and 39,406.60

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Solution

The fourth proportional to 71,242.03, 98,305.50 and 39,406.60 is: 54,376.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,242.03 : 98,305.50 = 39,406.60 : x
  2. Step 2: Convert to fraction form
    71,242.03/98,305.50 = 39,406.60/x
  3. Step 3: Cross multiply
    71,242.03x = 98,305.50 × 39,406.60
  4. Step 4: Simplify right side
    71,242.03x = 3,873,885,565.29
  5. Step 5: Solve for x
    x = 3,873,885,565.29/71,242.03
  6. Step 6: Final answer
    x = 54,376.41

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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.