Home / 57,720.08-86,423.72-29,959.76

Finding the Fourth Proportional to 57,720.08, 86,423.72 and 29,959.76

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Solution

The fourth proportional to 57,720.08, 86,423.72 and 29,959.76 is: 44,858.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,720.08 : 86,423.72 = 29,959.76 : x
  2. Step 2: Convert to fraction form
    57,720.08/86,423.72 = 29,959.76/x
  3. Step 3: Cross multiply
    57,720.08x = 86,423.72 × 29,959.76
  4. Step 4: Simplify right side
    57,720.08x = 2,589,233,327.59
  5. Step 5: Solve for x
    x = 2,589,233,327.59/57,720.08
  6. Step 6: Final answer
    x = 44,858.45

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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.