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Finding the Fourth Proportional to 84,073.44, 116,000.72 and 55,389.92

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Solution

The fourth proportional to 84,073.44, 116,000.72 and 55,389.92 is: 76,424.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,073.44 : 116,000.72 = 55,389.92 : x
  2. Step 2: Convert to fraction form
    84,073.44/116,000.72 = 55,389.92/x
  3. Step 3: Cross multiply
    84,073.44x = 116,000.72 × 55,389.92
  4. Step 4: Simplify right side
    84,073.44x = 6,425,270,600.74
  5. Step 5: Solve for x
    x = 6,425,270,600.74/84,073.44
  6. Step 6: Final answer
    x = 76,424.50

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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.