Home / 51,783.81-71,460.98-29,122.80

Finding the Fourth Proportional to 51,783.81, 71,460.98 and 29,122.80

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Solution

The fourth proportional to 51,783.81, 71,460.98 and 29,122.80 is: 40,189.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,783.81 : 71,460.98 = 29,122.80 : x
  2. Step 2: Convert to fraction form
    51,783.81/71,460.98 = 29,122.80/x
  3. Step 3: Cross multiply
    51,783.81x = 71,460.98 × 29,122.80
  4. Step 4: Simplify right side
    51,783.81x = 2,081,143,471.04
  5. Step 5: Solve for x
    x = 2,081,143,471.04/51,783.81
  6. Step 6: Final answer
    x = 40,189.08

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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.