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Finding the Fourth Proportional to 101,044.50, 139,438.35 and 55,722.42

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Solution

The fourth proportional to 101,044.50, 139,438.35 and 55,722.42 is: 76,895.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,044.50 : 139,438.35 = 55,722.42 : x
  2. Step 2: Convert to fraction form
    101,044.50/139,438.35 = 55,722.42/x
  3. Step 3: Cross multiply
    101,044.50x = 139,438.35 × 55,722.42
  4. Step 4: Simplify right side
    101,044.50x = 7,769,842,302.81
  5. Step 5: Solve for x
    x = 7,769,842,302.81/101,044.50
  6. Step 6: Final answer
    x = 76,895.25

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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.