Home / 71,211.78-98,263.68-39,376.32

Finding the Fourth Proportional to 71,211.78, 98,263.68 and 39,376.32

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Solution

The fourth proportional to 71,211.78, 98,263.68 and 39,376.32 is: 54,334.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,211.78 : 98,263.68 = 39,376.32 : x
  2. Step 2: Convert to fraction form
    71,211.78/98,263.68 = 39,376.32/x
  3. Step 3: Cross multiply
    71,211.78x = 98,263.68 × 39,376.32
  4. Step 4: Simplify right side
    71,211.78x = 3,869,262,108.06
  5. Step 5: Solve for x
    x = 3,869,262,108.06/71,211.78
  6. Step 6: Final answer
    x = 54,334.58

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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.