Home / 55,457.36-76,531.56-30,309.20

Finding the Fourth Proportional to 55,457.36, 76,531.56 and 30,309.20

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Solution

The fourth proportional to 55,457.36, 76,531.56 and 30,309.20 is: 41,826.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,457.36 : 76,531.56 = 30,309.20 : x
  2. Step 2: Convert to fraction form
    55,457.36/76,531.56 = 30,309.20/x
  3. Step 3: Cross multiply
    55,457.36x = 76,531.56 × 30,309.20
  4. Step 4: Simplify right side
    55,457.36x = 2,319,610,358.35
  5. Step 5: Solve for x
    x = 2,319,610,358.35/55,457.36
  6. Step 6: Final answer
    x = 41,826.92

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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.