Home / 71,628.10-98,848.55-39,362.48

Finding the Fourth Proportional to 71,628.10, 98,848.55 and 39,362.48

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Solution

The fourth proportional to 71,628.10, 98,848.55 and 39,362.48 is: 54,321.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,628.10 : 98,848.55 = 39,362.48 : x
  2. Step 2: Convert to fraction form
    71,628.10/98,848.55 = 39,362.48/x
  3. Step 3: Cross multiply
    71,628.10x = 98,848.55 × 39,362.48
  4. Step 4: Simplify right side
    71,628.10x = 3,890,924,047.25
  5. Step 5: Solve for x
    x = 3,890,924,047.25/71,628.10
  6. Step 6: Final answer
    x = 54,321.19

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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.