Home / 45,638.80-68,458.20-29,892.40

Finding the Fourth Proportional to 45,638.80, 68,458.20 and 29,892.40

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Solution

The fourth proportional to 45,638.80, 68,458.20 and 29,892.40 is: 44,838.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,638.80 : 68,458.20 = 29,892.40 : x
  2. Step 2: Convert to fraction form
    45,638.80/68,458.20 = 29,892.40/x
  3. Step 3: Cross multiply
    45,638.80x = 68,458.20 × 29,892.40
  4. Step 4: Simplify right side
    45,638.80x = 2,046,379,897.68
  5. Step 5: Solve for x
    x = 2,046,379,897.68/45,638.80
  6. Step 6: Final answer
    x = 44,838.60

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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.