Home / 78,124.11-117,030.07-35,946.36

Finding the Fourth Proportional to 78,124.11, 117,030.07 and 35,946.36

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Solution

The fourth proportional to 78,124.11, 117,030.07 and 35,946.36 is: 53,847.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,124.11 : 117,030.07 = 35,946.36 : x
  2. Step 2: Convert to fraction form
    78,124.11/117,030.07 = 35,946.36/x
  3. Step 3: Cross multiply
    78,124.11x = 117,030.07 × 35,946.36
  4. Step 4: Simplify right side
    78,124.11x = 4,206,805,508.69
  5. Step 5: Solve for x
    x = 4,206,805,508.69/78,124.11
  6. Step 6: Final answer
    x = 53,847.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.