Home / 70,930.10-106,386.50-18,335.18

Finding the Fourth Proportional to 70,930.10, 106,386.50 and 18,335.18

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Solution

The fourth proportional to 70,930.10, 106,386.50 and 18,335.18 is: 27,500.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,930.10 : 106,386.50 = 18,335.18 : x
  2. Step 2: Convert to fraction form
    70,930.10/106,386.50 = 18,335.18/x
  3. Step 3: Cross multiply
    70,930.10x = 106,386.50 × 18,335.18
  4. Step 4: Simplify right side
    70,930.10x = 1,950,615,627.07
  5. Step 5: Solve for x
    x = 1,950,615,627.07/70,930.10
  6. Step 6: Final answer
    x = 27,500.53

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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.