Home / 61,360.54-84,676.08-40,139.35

Finding the Fourth Proportional to 61,360.54, 84,676.08 and 40,139.35

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Solution

The fourth proportional to 61,360.54, 84,676.08 and 40,139.35 is: 55,391.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,360.54 : 84,676.08 = 40,139.35 : x
  2. Step 2: Convert to fraction form
    61,360.54/84,676.08 = 40,139.35/x
  3. Step 3: Cross multiply
    61,360.54x = 84,676.08 × 40,139.35
  4. Step 4: Simplify right side
    61,360.54x = 3,398,842,750.58
  5. Step 5: Solve for x
    x = 3,398,842,750.58/61,360.54
  6. Step 6: Final answer
    x = 55,391.35

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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.