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Finding the Fourth Proportional to 73,439.50, 101,346.51 and 39,905.50

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Solution

The fourth proportional to 73,439.50, 101,346.51 and 39,905.50 is: 55,069.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,439.50 : 101,346.51 = 39,905.50 : x
  2. Step 2: Convert to fraction form
    73,439.50/101,346.51 = 39,905.50/x
  3. Step 3: Cross multiply
    73,439.50x = 101,346.51 × 39,905.50
  4. Step 4: Simplify right side
    73,439.50x = 4,044,283,154.81
  5. Step 5: Solve for x
    x = 4,044,283,154.81/73,439.50
  6. Step 6: Final answer
    x = 55,069.59

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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.