Home / 70,545.03-105,816.38-28,424.08

Finding the Fourth Proportional to 70,545.03, 105,816.38 and 28,424.08

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Solution

The fourth proportional to 70,545.03, 105,816.38 and 28,424.08 is: 42,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,545.03 : 105,816.38 = 28,424.08 : x
  2. Step 2: Convert to fraction form
    70,545.03/105,816.38 = 28,424.08/x
  3. Step 3: Cross multiply
    70,545.03x = 105,816.38 × 28,424.08
  4. Step 4: Simplify right side
    70,545.03x = 3,007,733,108.31
  5. Step 5: Solve for x
    x = 3,007,733,108.31/70,545.03
  6. Step 6: Final answer
    x = 42,635.65

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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.