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Finding the Fourth Proportional to 70,983, 106,492.50 and 26,609.88

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Solution

The fourth proportional to 70,983, 106,492.50 and 26,609.88 is: 39,921.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,983 : 106,492.50 = 26,609.88 : x
  2. Step 2: Convert to fraction form
    70,983/106,492.50 = 26,609.88/x
  3. Step 3: Cross multiply
    70,983x = 106,492.50 × 26,609.88
  4. Step 4: Simplify right side
    70,983x = 2,833,752,645.90
  5. Step 5: Solve for x
    x = 2,833,752,645.90/70,983
  6. Step 6: Final answer
    x = 39,921.57

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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.