Home / 65,546.79-90,419.09-54,148.87

Finding the Fourth Proportional to 65,546.79, 90,419.09 and 54,148.87

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Solution

The fourth proportional to 65,546.79, 90,419.09 and 54,148.87 is: 74,696.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,546.79 : 90,419.09 = 54,148.87 : x
  2. Step 2: Convert to fraction form
    65,546.79/90,419.09 = 54,148.87/x
  3. Step 3: Cross multiply
    65,546.79x = 90,419.09 × 54,148.87
  4. Step 4: Simplify right side
    65,546.79x = 4,896,091,549.93
  5. Step 5: Solve for x
    x = 4,896,091,549.93/65,546.79
  6. Step 6: Final answer
    x = 74,696.13

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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.