Home / 76,545.03-105,640.89-42,556.89

Finding the Fourth Proportional to 76,545.03, 105,640.89 and 42,556.89

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Solution

The fourth proportional to 76,545.03, 105,640.89 and 42,556.89 is: 58,733.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,545.03 : 105,640.89 = 42,556.89 : x
  2. Step 2: Convert to fraction form
    76,545.03/105,640.89 = 42,556.89/x
  3. Step 3: Cross multiply
    76,545.03x = 105,640.89 × 42,556.89
  4. Step 4: Simplify right side
    76,545.03x = 4,495,747,735.23
  5. Step 5: Solve for x
    x = 4,495,747,735.23/76,545.03
  6. Step 6: Final answer
    x = 58,733.37

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1.5x scale

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.