Home / 76,987.17-106,246.62-54,333.54

Finding the Fourth Proportional to 76,987.17, 106,246.62 and 54,333.54

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Solution

The fourth proportional to 76,987.17, 106,246.62 and 54,333.54 is: 74,983.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,987.17 : 106,246.62 = 54,333.54 : x
  2. Step 2: Convert to fraction form
    76,987.17/106,246.62 = 54,333.54/x
  3. Step 3: Cross multiply
    76,987.17x = 106,246.62 × 54,333.54
  4. Step 4: Simplify right side
    76,987.17x = 5,772,754,977.63
  5. Step 5: Solve for x
    x = 5,772,754,977.63/76,987.17
  6. Step 6: Final answer
    x = 74,983.34

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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.