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Finding the Fourth Proportional to 61,783, 85,260.68 and 33,488.68

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Solution

The fourth proportional to 61,783, 85,260.68 and 33,488.68 is: 46,214.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,783 : 85,260.68 = 33,488.68 : x
  2. Step 2: Convert to fraction form
    61,783/85,260.68 = 33,488.68/x
  3. Step 3: Cross multiply
    61,783x = 85,260.68 × 33,488.68
  4. Step 4: Simplify right side
    61,783x = 2,855,267,629.10
  5. Step 5: Solve for x
    x = 2,855,267,629.10/61,783
  6. Step 6: Final answer
    x = 46,214.45

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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.