Home / 71,613.12-98,828.91-48,999.54

Finding the Fourth Proportional to 71,613.12, 98,828.91 and 48,999.54

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Solution

The fourth proportional to 71,613.12, 98,828.91 and 48,999.54 is: 67,621.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,613.12 : 98,828.91 = 48,999.54 : x
  2. Step 2: Convert to fraction form
    71,613.12/98,828.91 = 48,999.54/x
  3. Step 3: Cross multiply
    71,613.12x = 98,828.91 × 48,999.54
  4. Step 4: Simplify right side
    71,613.12x = 4,842,571,128.70
  5. Step 5: Solve for x
    x = 4,842,571,128.70/71,613.12
  6. Step 6: Final answer
    x = 67,621.28

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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.