Home / 42,566.10-63,855.90-12,977.16

Finding the Fourth Proportional to 42,566.10, 63,855.90 and 12,977.16

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Solution

The fourth proportional to 42,566.10, 63,855.90 and 12,977.16 is: 19,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,566.10 : 63,855.90 = 12,977.16 : x
  2. Step 2: Convert to fraction form
    42,566.10/63,855.90 = 12,977.16/x
  3. Step 3: Cross multiply
    42,566.10x = 63,855.90 × 12,977.16
  4. Step 4: Simplify right side
    42,566.10x = 828,668,231.24
  5. Step 5: Solve for x
    x = 828,668,231.24/42,566.10
  6. Step 6: Final answer
    x = 19,467.80

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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.