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Finding the Fourth Proportional to 70,745.60, 106,159.80 and 26,402.96

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Solution

The fourth proportional to 70,745.60, 106,159.80 and 26,402.96 is: 39,619.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,745.60 : 106,159.80 = 26,402.96 : x
  2. Step 2: Convert to fraction form
    70,745.60/106,159.80 = 26,402.96/x
  3. Step 3: Cross multiply
    70,745.60x = 106,159.80 × 26,402.96
  4. Step 4: Simplify right side
    70,745.60x = 2,802,932,953.01
  5. Step 5: Solve for x
    x = 2,802,932,953.01/70,745.60
  6. Step 6: Final answer
    x = 39,619.89

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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.