Home / 54,581.89-75,332.28-40,315.81

Finding the Fourth Proportional to 54,581.89, 75,332.28 and 40,315.81

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Solution

The fourth proportional to 54,581.89, 75,332.28 and 40,315.81 is: 55,642.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,581.89 : 75,332.28 = 40,315.81 : x
  2. Step 2: Convert to fraction form
    54,581.89/75,332.28 = 40,315.81/x
  3. Step 3: Cross multiply
    54,581.89x = 75,332.28 × 40,315.81
  4. Step 4: Simplify right side
    54,581.89x = 3,037,081,887.35
  5. Step 5: Solve for x
    x = 3,037,081,887.35/54,581.89
  6. Step 6: Final answer
    x = 55,642.67

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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.