Home / 97,428.81-134,453.89-54,987.65

Finding the Fourth Proportional to 97,428.81, 134,453.89 and 54,987.65

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Solution

The fourth proportional to 97,428.81, 134,453.89 and 54,987.65 is: 75,884.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,428.81 : 134,453.89 = 54,987.65 : x
  2. Step 2: Convert to fraction form
    97,428.81/134,453.89 = 54,987.65/x
  3. Step 3: Cross multiply
    97,428.81x = 134,453.89 × 54,987.65
  4. Step 4: Simplify right side
    97,428.81x = 7,393,303,444.46
  5. Step 5: Solve for x
    x = 7,393,303,444.46/97,428.81
  6. Step 6: Final answer
    x = 75,884.16

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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.