Home / 51,257.34-76,886.52-17,978.20

Finding the Fourth Proportional to 51,257.34, 76,886.52 and 17,978.20

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Solution

The fourth proportional to 51,257.34, 76,886.52 and 17,978.20 is: 26,967.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,257.34 : 76,886.52 = 17,978.20 : x
  2. Step 2: Convert to fraction form
    51,257.34/76,886.52 = 17,978.20/x
  3. Step 3: Cross multiply
    51,257.34x = 76,886.52 × 17,978.20
  4. Step 4: Simplify right side
    51,257.34x = 1,382,281,233.86
  5. Step 5: Solve for x
    x = 1,382,281,233.86/51,257.34
  6. Step 6: Final answer
    x = 26,967.48

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1.5x scale

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.