Home / 80,962.47-111,729.65-45,148.64

Finding the Fourth Proportional to 80,962.47, 111,729.65 and 45,148.64

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Solution

The fourth proportional to 80,962.47, 111,729.65 and 45,148.64 is: 62,305.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,962.47 : 111,729.65 = 45,148.64 : x
  2. Step 2: Convert to fraction form
    80,962.47/111,729.65 = 45,148.64/x
  3. Step 3: Cross multiply
    80,962.47x = 111,729.65 × 45,148.64
  4. Step 4: Simplify right side
    80,962.47x = 5,044,440,960.78
  5. Step 5: Solve for x
    x = 5,044,440,960.78/80,962.47
  6. Step 6: Final answer
    x = 62,305.92

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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.