Home / 51,780.99-71,457.08-29,119.97

Finding the Fourth Proportional to 51,780.99, 71,457.08 and 29,119.97

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Solution

The fourth proportional to 51,780.99, 71,457.08 and 29,119.97 is: 40,185.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,780.99 : 71,457.08 = 29,119.97 : x
  2. Step 2: Convert to fraction form
    51,780.99/71,457.08 = 29,119.97/x
  3. Step 3: Cross multiply
    51,780.99x = 71,457.08 × 29,119.97
  4. Step 4: Simplify right side
    51,780.99x = 2,080,828,025.89
  5. Step 5: Solve for x
    x = 2,080,828,025.89/51,780.99
  6. Step 6: Final answer
    x = 40,185.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.