Home / 72,475.84-99,982.52-51,266.80

Finding the Fourth Proportional to 72,475.84, 99,982.52 and 51,266.80

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Solution

The fourth proportional to 72,475.84, 99,982.52 and 51,266.80 is: 70,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,475.84 : 99,982.52 = 51,266.80 : x
  2. Step 2: Convert to fraction form
    72,475.84/99,982.52 = 51,266.80/x
  3. Step 3: Cross multiply
    72,475.84x = 99,982.52 × 51,266.80
  4. Step 4: Simplify right side
    72,475.84x = 5,125,783,856.34
  5. Step 5: Solve for x
    x = 5,125,783,856.34/72,475.84
  6. Step 6: Final answer
    x = 70,724.04

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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.