Home / 45,878.90-68,771.85-31,089.30

Finding the Fourth Proportional to 45,878.90, 68,771.85 and 31,089.30

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Solution

The fourth proportional to 45,878.90, 68,771.85 and 31,089.30 is: 46,602.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,878.90 : 68,771.85 = 31,089.30 : x
  2. Step 2: Convert to fraction form
    45,878.90/68,771.85 = 31,089.30/x
  3. Step 3: Cross multiply
    45,878.90x = 68,771.85 × 31,089.30
  4. Step 4: Simplify right side
    45,878.90x = 2,138,068,676.21
  5. Step 5: Solve for x
    x = 2,138,068,676.21/45,878.90
  6. Step 6: Final answer
    x = 46,602.44

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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.