Home / 42,566.60-63,856.65-12,977.66

Finding the Fourth Proportional to 42,566.60, 63,856.65 and 12,977.66

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Solution

The fourth proportional to 42,566.60, 63,856.65 and 12,977.66 is: 19,468.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,566.60 : 63,856.65 = 12,977.66 : x
  2. Step 2: Convert to fraction form
    42,566.60/63,856.65 = 12,977.66/x
  3. Step 3: Cross multiply
    42,566.60x = 63,856.65 × 12,977.66
  4. Step 4: Simplify right side
    42,566.60x = 828,709,892.44
  5. Step 5: Solve for x
    x = 828,709,892.44/42,566.60
  6. Step 6: Final answer
    x = 19,468.55

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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.