Home / 81,423.48-112,361.10-45,125.44

Finding the Fourth Proportional to 81,423.48, 112,361.10 and 45,125.44

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Solution

The fourth proportional to 81,423.48, 112,361.10 and 45,125.44 is: 62,271.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,423.48 : 112,361.10 = 45,125.44 : x
  2. Step 2: Convert to fraction form
    81,423.48/112,361.10 = 45,125.44/x
  3. Step 3: Cross multiply
    81,423.48x = 112,361.10 × 45,125.44
  4. Step 4: Simplify right side
    81,423.48x = 5,070,344,076.38
  5. Step 5: Solve for x
    x = 5,070,344,076.38/81,423.48
  6. Step 6: Final answer
    x = 62,271.28

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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.