Home / 53,984.10-81,012.60-30,291.60

Finding the Fourth Proportional to 53,984.10, 81,012.60 and 30,291.60

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Solution

The fourth proportional to 53,984.10, 81,012.60 and 30,291.60 is: 45,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,984.10 : 81,012.60 = 30,291.60 : x
  2. Step 2: Convert to fraction form
    53,984.10/81,012.60 = 30,291.60/x
  3. Step 3: Cross multiply
    53,984.10x = 81,012.60 × 30,291.60
  4. Step 4: Simplify right side
    53,984.10x = 2,454,001,274.16
  5. Step 5: Solve for x
    x = 2,454,001,274.16/53,984.10
  6. Step 6: Final answer
    x = 45,457.85

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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.