Home / 74,363.62-102,638.74-42,550.06

Finding the Fourth Proportional to 74,363.62, 102,638.74 and 42,550.06

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Solution

The fourth proportional to 74,363.62, 102,638.74 and 42,550.06 is: 58,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,363.62 : 102,638.74 = 42,550.06 : x
  2. Step 2: Convert to fraction form
    74,363.62/102,638.74 = 42,550.06/x
  3. Step 3: Cross multiply
    74,363.62x = 102,638.74 × 42,550.06
  4. Step 4: Simplify right side
    74,363.62x = 4,367,284,545.32
  5. Step 5: Solve for x
    x = 4,367,284,545.32/74,363.62
  6. Step 6: Final answer
    x = 58,728.78

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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.