Home / 51,778.90-77,554.53-42,792.40

Finding the Fourth Proportional to 51,778.90, 77,554.53 and 42,792.40

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Solution

The fourth proportional to 51,778.90, 77,554.53 and 42,792.40 is: 64,094.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,778.90 : 77,554.53 = 42,792.40 : x
  2. Step 2: Convert to fraction form
    51,778.90/77,554.53 = 42,792.40/x
  3. Step 3: Cross multiply
    51,778.90x = 77,554.53 × 42,792.40
  4. Step 4: Simplify right side
    51,778.90x = 3,318,744,469.57
  5. Step 5: Solve for x
    x = 3,318,744,469.57/51,778.90
  6. Step 6: Final answer
    x = 64,094.53

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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.