Home / 97,780.64-134,933.85-55,338.26

Finding the Fourth Proportional to 97,780.64, 134,933.85 and 55,338.26

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Solution

The fourth proportional to 97,780.64, 134,933.85 and 55,338.26 is: 76,364.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,780.64 : 134,933.85 = 55,338.26 : x
  2. Step 2: Convert to fraction form
    97,780.64/134,933.85 = 55,338.26/x
  3. Step 3: Cross multiply
    97,780.64x = 134,933.85 × 55,338.26
  4. Step 4: Simplify right side
    97,780.64x = 7,467,003,799.43
  5. Step 5: Solve for x
    x = 7,467,003,799.43/97,780.64
  6. Step 6: Final answer
    x = 76,364.85

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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.