Home / 56,715.28-85,076.86-19,260.08

Finding the Fourth Proportional to 56,715.28, 85,076.86 and 19,260.08

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Solution

The fourth proportional to 56,715.28, 85,076.86 and 19,260.08 is: 28,891.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,715.28 : 85,076.86 = 19,260.08 : x
  2. Step 2: Convert to fraction form
    56,715.28/85,076.86 = 19,260.08/x
  3. Step 3: Cross multiply
    56,715.28x = 85,076.86 × 19,260.08
  4. Step 4: Simplify right side
    56,715.28x = 1,638,587,129.75
  5. Step 5: Solve for x
    x = 1,638,587,129.75/56,715.28
  6. Step 6: Final answer
    x = 28,891.46

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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.