Home / 71,281.98-98,368.44-39,450.06

Finding the Fourth Proportional to 71,281.98, 98,368.44 and 39,450.06

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Solution

The fourth proportional to 71,281.98, 98,368.44 and 39,450.06 is: 54,440.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,281.98 : 98,368.44 = 39,450.06 : x
  2. Step 2: Convert to fraction form
    71,281.98/98,368.44 = 39,450.06/x
  3. Step 3: Cross multiply
    71,281.98x = 98,368.44 × 39,450.06
  4. Step 4: Simplify right side
    71,281.98x = 3,880,640,860.11
  5. Step 5: Solve for x
    x = 3,880,640,860.11/71,281.98
  6. Step 6: Final answer
    x = 54,440.70

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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.