Home / 78,264.24-117,396.36-64,384.08

Finding the Fourth Proportional to 78,264.24, 117,396.36 and 64,384.08

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Solution

The fourth proportional to 78,264.24, 117,396.36 and 64,384.08 is: 96,576.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,264.24 : 117,396.36 = 64,384.08 : x
  2. Step 2: Convert to fraction form
    78,264.24/117,396.36 = 64,384.08/x
  3. Step 3: Cross multiply
    78,264.24x = 117,396.36 × 64,384.08
  4. Step 4: Simplify right side
    78,264.24x = 7,558,456,633.95
  5. Step 5: Solve for x
    x = 7,558,456,633.95/78,264.24
  6. Step 6: Final answer
    x = 96,576.12

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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.