Home / 70,521.12-105,707.39-23,123.87

Finding the Fourth Proportional to 70,521.12, 105,707.39 and 23,123.87

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Solution

The fourth proportional to 70,521.12, 105,707.39 and 23,123.87 is: 34,661.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,521.12 : 105,707.39 = 23,123.87 : x
  2. Step 2: Convert to fraction form
    70,521.12/105,707.39 = 23,123.87/x
  3. Step 3: Cross multiply
    70,521.12x = 105,707.39 × 23,123.87
  4. Step 4: Simplify right side
    70,521.12x = 2,444,363,300.24
  5. Step 5: Solve for x
    x = 2,444,363,300.24/70,521.12
  6. Step 6: Final answer
    x = 34,661.44

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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.