Home / 55,403.67-76,457.21-30,253.17

Finding the Fourth Proportional to 55,403.67, 76,457.21 and 30,253.17

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Solution

The fourth proportional to 55,403.67, 76,457.21 and 30,253.17 is: 41,749.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,403.67 : 76,457.21 = 30,253.17 : x
  2. Step 2: Convert to fraction form
    55,403.67/76,457.21 = 30,253.17/x
  3. Step 3: Cross multiply
    55,403.67x = 76,457.21 × 30,253.17
  4. Step 4: Simplify right side
    55,403.67x = 2,313,072,820.59
  5. Step 5: Solve for x
    x = 2,313,072,820.59/55,403.67
  6. Step 6: Final answer
    x = 41,749.45

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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.