Home / 97,139.45-134,054.73-54,121.84

Finding the Fourth Proportional to 97,139.45, 134,054.73 and 54,121.84

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Solution

The fourth proportional to 97,139.45, 134,054.73 and 54,121.84 is: 74,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,139.45 : 134,054.73 = 54,121.84 : x
  2. Step 2: Convert to fraction form
    97,139.45/134,054.73 = 54,121.84/x
  3. Step 3: Cross multiply
    97,139.45x = 134,054.73 × 54,121.84
  4. Step 4: Simplify right side
    97,139.45x = 7,255,288,313.17
  5. Step 5: Solve for x
    x = 7,255,288,313.17/97,139.45
  6. Step 6: Final answer
    x = 74,689.41

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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.