Home / 74,383.83-102,647.85-42,550.68

Finding the Fourth Proportional to 74,383.83, 102,647.85 and 42,550.68

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Solution

The fourth proportional to 74,383.83, 102,647.85 and 42,550.68 is: 58,718.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,383.83 : 102,647.85 = 42,550.68 : x
  2. Step 2: Convert to fraction form
    74,383.83/102,647.85 = 42,550.68/x
  3. Step 3: Cross multiply
    74,383.83x = 102,647.85 × 42,550.68
  4. Step 4: Simplify right side
    74,383.83x = 4,367,735,818.04
  5. Step 5: Solve for x
    x = 4,367,735,818.04/74,383.83
  6. Step 6: Final answer
    x = 58,718.89

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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.