Home / 61,512.96-84,901.68-40,279.89

Finding the Fourth Proportional to 61,512.96, 84,901.68 and 40,279.89

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Solution

The fourth proportional to 61,512.96, 84,901.68 and 40,279.89 is: 55,595.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,512.96 : 84,901.68 = 40,279.89 : x
  2. Step 2: Convert to fraction form
    61,512.96/84,901.68 = 40,279.89/x
  3. Step 3: Cross multiply
    61,512.96x = 84,901.68 × 40,279.89
  4. Step 4: Simplify right side
    61,512.96x = 3,419,830,331.22
  5. Step 5: Solve for x
    x = 3,419,830,331.22/61,512.96
  6. Step 6: Final answer
    x = 55,595.28

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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.