Home / 78,545.24-108,392.90-42,735.52

Finding the Fourth Proportional to 78,545.24, 108,392.90 and 42,735.52

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Solution

The fourth proportional to 78,545.24, 108,392.90 and 42,735.52 is: 58,975.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,545.24 : 108,392.90 = 42,735.52 : x
  2. Step 2: Convert to fraction form
    78,545.24/108,392.90 = 42,735.52/x
  3. Step 3: Cross multiply
    78,545.24x = 108,392.90 × 42,735.52
  4. Step 4: Simplify right side
    78,545.24x = 4,632,226,945.81
  5. Step 5: Solve for x
    x = 4,632,226,945.81/78,545.24
  6. Step 6: Final answer
    x = 58,975.27

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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.