Home / 76,426.10-114,639.15-20,266.10

Finding the Fourth Proportional to 76,426.10, 114,639.15 and 20,266.10

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Solution

The fourth proportional to 76,426.10, 114,639.15 and 20,266.10 is: 30,399.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,426.10 : 114,639.15 = 20,266.10 : x
  2. Step 2: Convert to fraction form
    76,426.10/114,639.15 = 20,266.10/x
  3. Step 3: Cross multiply
    76,426.10x = 114,639.15 × 20,266.10
  4. Step 4: Simplify right side
    76,426.10x = 2,323,288,477.82
  5. Step 5: Solve for x
    x = 2,323,288,477.82/76,426.10
  6. Step 6: Final answer
    x = 30,399.15

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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.