Home / 45,172.66-67,782.12-21,506.98

Finding the Fourth Proportional to 45,172.66, 67,782.12 and 21,506.98

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Solution

The fourth proportional to 45,172.66, 67,782.12 and 21,506.98 is: 32,271.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,172.66 : 67,782.12 = 21,506.98 : x
  2. Step 2: Convert to fraction form
    45,172.66/67,782.12 = 21,506.98/x
  3. Step 3: Cross multiply
    45,172.66x = 67,782.12 × 21,506.98
  4. Step 4: Simplify right side
    45,172.66x = 1,457,788,699.20
  5. Step 5: Solve for x
    x = 1,457,788,699.20/45,172.66
  6. Step 6: Final answer
    x = 32,271.48

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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.