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Finding the Fourth Proportional to 73,235.40, 109,853.10 and 43,686.60

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Solution

The fourth proportional to 73,235.40, 109,853.10 and 43,686.60 is: 65,529.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,235.40 : 109,853.10 = 43,686.60 : x
  2. Step 2: Convert to fraction form
    73,235.40/109,853.10 = 43,686.60/x
  3. Step 3: Cross multiply
    73,235.40x = 109,853.10 × 43,686.60
  4. Step 4: Simplify right side
    73,235.40x = 4,799,108,438.46
  5. Step 5: Solve for x
    x = 4,799,108,438.46/73,235.40
  6. Step 6: Final answer
    x = 65,529.90

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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.