Home / 85,580.42-118,061.21-55,375.49

Finding the Fourth Proportional to 85,580.42, 118,061.21 and 55,375.49

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Solution

The fourth proportional to 85,580.42, 118,061.21 and 55,375.49 is: 76,392.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,580.42 : 118,061.21 = 55,375.49 : x
  2. Step 2: Convert to fraction form
    85,580.42/118,061.21 = 55,375.49/x
  3. Step 3: Cross multiply
    85,580.42x = 118,061.21 × 55,375.49
  4. Step 4: Simplify right side
    85,580.42x = 6,537,697,353.74
  5. Step 5: Solve for x
    x = 6,537,697,353.74/85,580.42
  6. Step 6: Final answer
    x = 76,392.44

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1.5x scale

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.