Home / 42,566.85-63,857.29-12,977.77

Finding the Fourth Proportional to 42,566.85, 63,857.29 and 12,977.77

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Solution

The fourth proportional to 42,566.85, 63,857.29 and 12,977.77 is: 19,468.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,566.85 : 63,857.29 = 12,977.77 : x
  2. Step 2: Convert to fraction form
    42,566.85/63,857.29 = 12,977.77/x
  3. Step 3: Cross multiply
    42,566.85x = 63,857.29 × 12,977.77
  4. Step 4: Simplify right side
    42,566.85x = 828,725,222.44
  5. Step 5: Solve for x
    x = 828,725,222.44/42,566.85
  6. Step 6: Final answer
    x = 19,468.79

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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.