Home / 71,506.10-98,678.85-39,675.62

Finding the Fourth Proportional to 71,506.10, 98,678.85 and 39,675.62

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Solution

The fourth proportional to 71,506.10, 98,678.85 and 39,675.62 is: 54,752.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,506.10 : 98,678.85 = 39,675.62 : x
  2. Step 2: Convert to fraction form
    71,506.10/98,678.85 = 39,675.62/x
  3. Step 3: Cross multiply
    71,506.10x = 98,678.85 × 39,675.62
  4. Step 4: Simplify right side
    71,506.10x = 3,915,144,554.64
  5. Step 5: Solve for x
    x = 3,915,144,554.64/71,506.10
  6. Step 6: Final answer
    x = 54,752.60

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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.