Home / 97,932.78-135,141.48-55,490.40

Finding the Fourth Proportional to 97,932.78, 135,141.48 and 55,490.40

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Solution

The fourth proportional to 97,932.78, 135,141.48 and 55,490.40 is: 76,573.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,932.78 : 135,141.48 = 55,490.40 : x
  2. Step 2: Convert to fraction form
    97,932.78/135,141.48 = 55,490.40/x
  3. Step 3: Cross multiply
    97,932.78x = 135,141.48 × 55,490.40
  4. Step 4: Simplify right side
    97,932.78x = 7,499,054,781.79
  5. Step 5: Solve for x
    x = 7,499,054,781.79/97,932.78
  6. Step 6: Final answer
    x = 76,573.49

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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.