Home / 56,426.88-77,872.32-34,078.08

Finding the Fourth Proportional to 56,426.88, 77,872.32 and 34,078.08

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Solution

The fourth proportional to 56,426.88, 77,872.32 and 34,078.08 is: 47,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,426.88 : 77,872.32 = 34,078.08 : x
  2. Step 2: Convert to fraction form
    56,426.88/77,872.32 = 34,078.08/x
  3. Step 3: Cross multiply
    56,426.88x = 77,872.32 × 34,078.08
  4. Step 4: Simplify right side
    56,426.88x = 2,653,739,150.75
  5. Step 5: Solve for x
    x = 2,653,739,150.75/56,426.88
  6. Step 6: Final answer
    x = 47,029.70

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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.