Home / 97,748.56-134,887.08-55,320.40

Finding the Fourth Proportional to 97,748.56, 134,887.08 and 55,320.40

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Solution

The fourth proportional to 97,748.56, 134,887.08 and 55,320.40 is: 76,338.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,748.56 : 134,887.08 = 55,320.40 : x
  2. Step 2: Convert to fraction form
    97,748.56/134,887.08 = 55,320.40/x
  3. Step 3: Cross multiply
    97,748.56x = 134,887.08 × 55,320.40
  4. Step 4: Simplify right side
    97,748.56x = 7,462,007,220.43
  5. Step 5: Solve for x
    x = 7,462,007,220.43/97,748.56
  6. Step 6: Final answer
    x = 76,338.79

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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.