Home / 61,155.01-84,315.78-39,606.68

Finding the Fourth Proportional to 61,155.01, 84,315.78 and 39,606.68

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Solution

The fourth proportional to 61,155.01, 84,315.78 and 39,606.68 is: 54,606.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,155.01 : 84,315.78 = 39,606.68 : x
  2. Step 2: Convert to fraction form
    61,155.01/84,315.78 = 39,606.68/x
  3. Step 3: Cross multiply
    61,155.01x = 84,315.78 × 39,606.68
  4. Step 4: Simplify right side
    61,155.01x = 3,339,468,117.41
  5. Step 5: Solve for x
    x = 3,339,468,117.41/61,155.01
  6. Step 6: Final answer
    x = 54,606.62

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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.