Home / 85,277.68-117,681.52-47,040.72

Finding the Fourth Proportional to 85,277.68, 117,681.52 and 47,040.72

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Solution

The fourth proportional to 85,277.68, 117,681.52 and 47,040.72 is: 64,915.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,277.68 : 117,681.52 = 47,040.72 : x
  2. Step 2: Convert to fraction form
    85,277.68/117,681.52 = 47,040.72/x
  3. Step 3: Cross multiply
    85,277.68x = 117,681.52 × 47,040.72
  4. Step 4: Simplify right side
    85,277.68x = 5,535,823,431.49
  5. Step 5: Solve for x
    x = 5,535,823,431.49/85,277.68
  6. Step 6: Final answer
    x = 64,915.27

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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.