Home / 71,317.43-98,417.67-39,486.23

Finding the Fourth Proportional to 71,317.43, 98,417.67 and 39,486.23

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Solution

The fourth proportional to 71,317.43, 98,417.67 and 39,486.23 is: 54,490.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,317.43 : 98,417.67 = 39,486.23 : x
  2. Step 2: Convert to fraction form
    71,317.43/98,417.67 = 39,486.23/x
  3. Step 3: Cross multiply
    71,317.43x = 98,417.67 × 39,486.23
  4. Step 4: Simplify right side
    71,317.43x = 3,886,142,753.68
  5. Step 5: Solve for x
    x = 3,886,142,753.68/71,317.43
  6. Step 6: Final answer
    x = 54,490.79

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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.