Home / 55,428.48-76,491.54-30,278.52

Finding the Fourth Proportional to 55,428.48, 76,491.54 and 30,278.52

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Solution

The fourth proportional to 55,428.48, 76,491.54 and 30,278.52 is: 41,784.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,428.48 : 76,491.54 = 30,278.52 : x
  2. Step 2: Convert to fraction form
    55,428.48/76,491.54 = 30,278.52/x
  3. Step 3: Cross multiply
    55,428.48x = 76,491.54 × 30,278.52
  4. Step 4: Simplify right side
    55,428.48x = 2,316,050,623.72
  5. Step 5: Solve for x
    x = 2,316,050,623.72/55,428.48
  6. Step 6: Final answer
    x = 41,784.49

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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.