Home / 55,422.48-76,470.12-31,547.28

Finding the Fourth Proportional to 55,422.48, 76,470.12 and 31,547.28

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Solution

The fourth proportional to 55,422.48, 76,470.12 and 31,547.28 is: 43,527.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,422.48 : 76,470.12 = 31,547.28 : x
  2. Step 2: Convert to fraction form
    55,422.48/76,470.12 = 31,547.28/x
  3. Step 3: Cross multiply
    55,422.48x = 76,470.12 × 31,547.28
  4. Step 4: Simplify right side
    55,422.48x = 2,412,424,287.27
  5. Step 5: Solve for x
    x = 2,412,424,287.27/55,422.48
  6. Step 6: Final answer
    x = 43,527.90

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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.