Home / 45,005.70-67,508.55-31,008.90

Finding the Fourth Proportional to 45,005.70, 67,508.55 and 31,008.90

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Solution

The fourth proportional to 45,005.70, 67,508.55 and 31,008.90 is: 46,513.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,005.70 : 67,508.55 = 31,008.90 : x
  2. Step 2: Convert to fraction form
    45,005.70/67,508.55 = 31,008.90/x
  3. Step 3: Cross multiply
    45,005.70x = 67,508.55 × 31,008.90
  4. Step 4: Simplify right side
    45,005.70x = 2,093,365,876.10
  5. Step 5: Solve for x
    x = 2,093,365,876.10/45,005.70
  6. Step 6: Final answer
    x = 46,513.35

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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.