Home / 54,479.07-75,188.13-30,605.78

Finding the Fourth Proportional to 54,479.07, 75,188.13 and 30,605.78

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Solution

The fourth proportional to 54,479.07, 75,188.13 and 30,605.78 is: 42,239.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,479.07 : 75,188.13 = 30,605.78 : x
  2. Step 2: Convert to fraction form
    54,479.07/75,188.13 = 30,605.78/x
  3. Step 3: Cross multiply
    54,479.07x = 75,188.13 × 30,605.78
  4. Step 4: Simplify right side
    54,479.07x = 2,301,190,989.45
  5. Step 5: Solve for x
    x = 2,301,190,989.45/54,479.07
  6. Step 6: Final answer
    x = 42,239.91

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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.