Home / 81,130.41-111,962.25-45,324.36

Finding the Fourth Proportional to 81,130.41, 111,962.25 and 45,324.36

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Solution

The fourth proportional to 81,130.41, 111,962.25 and 45,324.36 is: 62,548.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,130.41 : 111,962.25 = 45,324.36 : x
  2. Step 2: Convert to fraction form
    81,130.41/111,962.25 = 45,324.36/x
  3. Step 3: Cross multiply
    81,130.41x = 111,962.25 × 45,324.36
  4. Step 4: Simplify right side
    81,130.41x = 5,074,617,325.41
  5. Step 5: Solve for x
    x = 5,074,617,325.41/81,130.41
  6. Step 6: Final answer
    x = 62,548.89

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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.