Home / 70,178.72-105,270-23,429.92

Finding the Fourth Proportional to 70,178.72, 105,270 and 23,429.92

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Solution

The fourth proportional to 70,178.72, 105,270 and 23,429.92 is: 35,145.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,178.72 : 105,270 = 23,429.92 : x
  2. Step 2: Convert to fraction form
    70,178.72/105,270 = 23,429.92/x
  3. Step 3: Cross multiply
    70,178.72x = 105,270 × 23,429.92
  4. Step 4: Simplify right side
    70,178.72x = 2,466,467,678.40
  5. Step 5: Solve for x
    x = 2,466,467,678.40/70,178.72
  6. Step 6: Final answer
    x = 35,145.52

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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.