Home / 92,415.18-127,530.09-52,128.36

Finding the Fourth Proportional to 92,415.18, 127,530.09 and 52,128.36

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Solution

The fourth proportional to 92,415.18, 127,530.09 and 52,128.36 is: 71,935.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,415.18 : 127,530.09 = 52,128.36 : x
  2. Step 2: Convert to fraction form
    92,415.18/127,530.09 = 52,128.36/x
  3. Step 3: Cross multiply
    92,415.18x = 127,530.09 × 52,128.36
  4. Step 4: Simplify right side
    92,415.18x = 6,647,934,442.35
  5. Step 5: Solve for x
    x = 6,647,934,442.35/92,415.18
  6. Step 6: Final answer
    x = 71,935.52

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1.5x scale

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.