Home / 76,215.47-114,363.29-54,170.51

Finding the Fourth Proportional to 76,215.47, 114,363.29 and 54,170.51

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Solution

The fourth proportional to 76,215.47, 114,363.29 and 54,170.51 is: 81,284.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,215.47 : 114,363.29 = 54,170.51 : x
  2. Step 2: Convert to fraction form
    76,215.47/114,363.29 = 54,170.51/x
  3. Step 3: Cross multiply
    76,215.47x = 114,363.29 × 54,170.51
  4. Step 4: Simplify right side
    76,215.47x = 6,195,117,308.19
  5. Step 5: Solve for x
    x = 6,195,117,308.19/76,215.47
  6. Step 6: Final answer
    x = 81,284.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.