Home / 45,503.90-68,255.85-45,438.19

Finding the Fourth Proportional to 45,503.90, 68,255.85 and 45,438.19

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Solution

The fourth proportional to 45,503.90, 68,255.85 and 45,438.19 is: 68,157.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,503.90 : 68,255.85 = 45,438.19 : x
  2. Step 2: Convert to fraction form
    45,503.90/68,255.85 = 45,438.19/x
  3. Step 3: Cross multiply
    45,503.90x = 68,255.85 × 45,438.19
  4. Step 4: Simplify right side
    45,503.90x = 3,101,421,712.44
  5. Step 5: Solve for x
    x = 3,101,421,712.44/45,503.90
  6. Step 6: Final answer
    x = 68,157.28

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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.