Home / 57,120.63-85,531.91-45,966.39

Finding the Fourth Proportional to 57,120.63, 85,531.91 and 45,966.39

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Solution

The fourth proportional to 57,120.63, 85,531.91 and 45,966.39 is: 68,829.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120.63 : 85,531.91 = 45,966.39 : x
  2. Step 2: Convert to fraction form
    57,120.63/85,531.91 = 45,966.39/x
  3. Step 3: Cross multiply
    57,120.63x = 85,531.91 × 45,966.39
  4. Step 4: Simplify right side
    57,120.63x = 3,931,592,902.67
  5. Step 5: Solve for x
    x = 3,931,592,902.67/57,120.63
  6. Step 6: Final answer
    x = 68,829.65

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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.