Home / 57,425.54-86,138.30-17,985.74

Finding the Fourth Proportional to 57,425.54, 86,138.30 and 17,985.74

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Solution

The fourth proportional to 57,425.54, 86,138.30 and 17,985.74 is: 26,978.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,425.54 : 86,138.30 = 17,985.74 : x
  2. Step 2: Convert to fraction form
    57,425.54/86,138.30 = 17,985.74/x
  3. Step 3: Cross multiply
    57,425.54x = 86,138.30 × 17,985.74
  4. Step 4: Simplify right side
    57,425.54x = 1,549,260,682.11
  5. Step 5: Solve for x
    x = 1,549,260,682.11/57,425.54
  6. Step 6: Final answer
    x = 26,978.60

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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.