Home / 71,314.24-98,417.28-39,486.64

Finding the Fourth Proportional to 71,314.24, 98,417.28 and 39,486.64

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Solution

The fourth proportional to 71,314.24, 98,417.28 and 39,486.64 is: 54,493.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,314.24 : 98,417.28 = 39,486.64 : x
  2. Step 2: Convert to fraction form
    71,314.24/98,417.28 = 39,486.64/x
  3. Step 3: Cross multiply
    71,314.24x = 98,417.28 × 39,486.64
  4. Step 4: Simplify right side
    71,314.24x = 3,886,167,705.14
  5. Step 5: Solve for x
    x = 3,886,167,705.14/71,314.24
  6. Step 6: Final answer
    x = 54,493.57

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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.