Home / 45,653.10-68,478.69-21,029.10

Finding the Fourth Proportional to 45,653.10, 68,478.69 and 21,029.10

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Solution

The fourth proportional to 45,653.10, 68,478.69 and 21,029.10 is: 31,543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,653.10 : 68,478.69 = 21,029.10 : x
  2. Step 2: Convert to fraction form
    45,653.10/68,478.69 = 21,029.10/x
  3. Step 3: Cross multiply
    45,653.10x = 68,478.69 × 21,029.10
  4. Step 4: Simplify right side
    45,653.10x = 1,440,045,219.88
  5. Step 5: Solve for x
    x = 1,440,045,219.88/45,653.10
  6. Step 6: Final answer
    x = 31,543.21

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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.