Home / 92,085.40-138,128.10-60,913.36

Finding the Fourth Proportional to 92,085.40, 138,128.10 and 60,913.36

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Solution

The fourth proportional to 92,085.40, 138,128.10 and 60,913.36 is: 91,370.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,085.40 : 138,128.10 = 60,913.36 : x
  2. Step 2: Convert to fraction form
    92,085.40/138,128.10 = 60,913.36/x
  3. Step 3: Cross multiply
    92,085.40x = 138,128.10 × 60,913.36
  4. Step 4: Simplify right side
    92,085.40x = 8,413,846,968.29
  5. Step 5: Solve for x
    x = 8,413,846,968.29/92,085.40
  6. Step 6: Final answer
    x = 91,370.04

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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.