Home / 76,170.62-105,082.86-45,938.74

Finding the Fourth Proportional to 76,170.62, 105,082.86 and 45,938.74

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Solution

The fourth proportional to 76,170.62, 105,082.86 and 45,938.74 is: 63,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,170.62 : 105,082.86 = 45,938.74 : x
  2. Step 2: Convert to fraction form
    76,170.62/105,082.86 = 45,938.74/x
  3. Step 3: Cross multiply
    76,170.62x = 105,082.86 × 45,938.74
  4. Step 4: Simplify right side
    76,170.62x = 4,827,374,184.00
  5. Step 5: Solve for x
    x = 4,827,374,184.00/76,170.62
  6. Step 6: Final answer
    x = 63,375.80

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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.