Home / 45,818.64-68,727.92-12,539.00

Finding the Fourth Proportional to 45,818.64, 68,727.92 and 12,539.00

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Solution

The fourth proportional to 45,818.64, 68,727.92 and 12,539.00 is: 18,808.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,818.64 : 68,727.92 = 12,539.00 : x
  2. Step 2: Convert to fraction form
    45,818.64/68,727.92 = 12,539.00/x
  3. Step 3: Cross multiply
    45,818.64x = 68,727.92 × 12,539.00
  4. Step 4: Simplify right side
    45,818.64x = 861,779,498.00
  5. Step 5: Solve for x
    x = 861,779,498.00/45,818.64
  6. Step 6: Final answer
    x = 18,808.49

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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.