Home / 51,312.12-76,976.24-21,730.12

Finding the Fourth Proportional to 51,312.12, 76,976.24 and 21,730.12

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Solution

The fourth proportional to 51,312.12, 76,976.24 and 21,730.12 is: 32,598.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,312.12 : 76,976.24 = 21,730.12 : x
  2. Step 2: Convert to fraction form
    51,312.12/76,976.24 = 21,730.12/x
  3. Step 3: Cross multiply
    51,312.12x = 76,976.24 × 21,730.12
  4. Step 4: Simplify right side
    51,312.12x = 1,672,702,932.35
  5. Step 5: Solve for x
    x = 1,672,702,932.35/51,312.12
  6. Step 6: Final answer
    x = 32,598.59

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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.