Home / 76,586.58-114,885.35-20,426.40

Finding the Fourth Proportional to 76,586.58, 114,885.35 and 20,426.40

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Solution

The fourth proportional to 76,586.58, 114,885.35 and 20,426.40 is: 30,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,586.58 : 114,885.35 = 20,426.40 : x
  2. Step 2: Convert to fraction form
    76,586.58/114,885.35 = 20,426.40/x
  3. Step 3: Cross multiply
    76,586.58x = 114,885.35 × 20,426.40
  4. Step 4: Simplify right side
    76,586.58x = 2,346,694,011.11
  5. Step 5: Solve for x
    x = 2,346,694,011.11/76,586.58
  6. Step 6: Final answer
    x = 30,641.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.