Home / 68,829.12-94,985.04-38,620.92

Finding the Fourth Proportional to 68,829.12, 94,985.04 and 38,620.92

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Solution

The fourth proportional to 68,829.12, 94,985.04 and 38,620.92 is: 53,297.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,829.12 : 94,985.04 = 38,620.92 : x
  2. Step 2: Convert to fraction form
    68,829.12/94,985.04 = 38,620.92/x
  3. Step 3: Cross multiply
    68,829.12x = 94,985.04 × 38,620.92
  4. Step 4: Simplify right side
    68,829.12x = 3,668,409,631.04
  5. Step 5: Solve for x
    x = 3,668,409,631.04/68,829.12
  6. Step 6: Final answer
    x = 53,297.35

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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.