Home / 71,114.20-98,136.98-39,285.32

Finding the Fourth Proportional to 71,114.20, 98,136.98 and 39,285.32

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Solution

The fourth proportional to 71,114.20, 98,136.98 and 39,285.32 is: 54,213.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,114.20 : 98,136.98 = 39,285.32 : x
  2. Step 2: Convert to fraction form
    71,114.20/98,136.98 = 39,285.32/x
  3. Step 3: Cross multiply
    71,114.20x = 98,136.98 × 39,285.32
  4. Step 4: Simplify right side
    71,114.20x = 3,855,342,663.13
  5. Step 5: Solve for x
    x = 3,855,342,663.13/71,114.20
  6. Step 6: Final answer
    x = 54,213.40

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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.