Home / 71,318.09-98,420.48-39,054.08

Finding the Fourth Proportional to 71,318.09, 98,420.48 and 39,054.08

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Solution

The fourth proportional to 71,318.09, 98,420.48 and 39,054.08 is: 53,895.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,318.09 : 98,420.48 = 39,054.08 : x
  2. Step 2: Convert to fraction form
    71,318.09/98,420.48 = 39,054.08/x
  3. Step 3: Cross multiply
    71,318.09x = 98,420.48 × 39,054.08
  4. Step 4: Simplify right side
    71,318.09x = 3,843,721,299.56
  5. Step 5: Solve for x
    x = 3,843,721,299.56/71,318.09
  6. Step 6: Final answer
    x = 53,895.46

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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.