Home / 61,320.32-84,567.44-39,789.51

Finding the Fourth Proportional to 61,320.32, 84,567.44 and 39,789.51

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Solution

The fourth proportional to 61,320.32, 84,567.44 and 39,789.51 is: 54,874.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,320.32 : 84,567.44 = 39,789.51 : x
  2. Step 2: Convert to fraction form
    61,320.32/84,567.44 = 39,789.51/x
  3. Step 3: Cross multiply
    61,320.32x = 84,567.44 × 39,789.51
  4. Step 4: Simplify right side
    61,320.32x = 3,364,897,257.59
  5. Step 5: Solve for x
    x = 3,364,897,257.59/61,320.32
  6. Step 6: Final answer
    x = 54,874.09

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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.