Home / 81,621.96-112,609.36-53,344.04

Finding the Fourth Proportional to 81,621.96, 112,609.36 and 53,344.04

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Solution

The fourth proportional to 81,621.96, 112,609.36 and 53,344.04 is: 73,595.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,621.96 : 112,609.36 = 53,344.04 : x
  2. Step 2: Convert to fraction form
    81,621.96/112,609.36 = 53,344.04/x
  3. Step 3: Cross multiply
    81,621.96x = 112,609.36 × 53,344.04
  4. Step 4: Simplify right side
    81,621.96x = 6,007,038,204.21
  5. Step 5: Solve for x
    x = 6,007,038,204.21/81,621.96
  6. Step 6: Final answer
    x = 73,595.86

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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.