Home / 97,628.36-134,728.11-57,355.16

Finding the Fourth Proportional to 97,628.36, 134,728.11 and 57,355.16

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Solution

The fourth proportional to 97,628.36, 134,728.11 and 57,355.16 is: 79,150.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,628.36 : 134,728.11 = 57,355.16 : x
  2. Step 2: Convert to fraction form
    97,628.36/134,728.11 = 57,355.16/x
  3. Step 3: Cross multiply
    97,628.36x = 134,728.11 × 57,355.16
  4. Step 4: Simplify right side
    97,628.36x = 7,727,351,631.91
  5. Step 5: Solve for x
    x = 7,727,351,631.91/97,628.36
  6. Step 6: Final answer
    x = 79,150.69

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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.