Home / 65,894.06-90,938.67-40,748.42

Finding the Fourth Proportional to 65,894.06, 90,938.67 and 40,748.42

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Solution

The fourth proportional to 65,894.06, 90,938.67 and 40,748.42 is: 56,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,894.06 : 90,938.67 = 40,748.42 : x
  2. Step 2: Convert to fraction form
    65,894.06/90,938.67 = 40,748.42/x
  3. Step 3: Cross multiply
    65,894.06x = 90,938.67 × 40,748.42
  4. Step 4: Simplify right side
    65,894.06x = 3,705,607,193.94
  5. Step 5: Solve for x
    x = 3,705,607,193.94/65,894.06
  6. Step 6: Final answer
    x = 56,235.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.