Home / 92,315.36-138,272.16-60,689.72

Finding the Fourth Proportional to 92,315.36, 138,272.16 and 60,689.72

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Solution

The fourth proportional to 92,315.36, 138,272.16 and 60,689.72 is: 90,902.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,315.36 : 138,272.16 = 60,689.72 : x
  2. Step 2: Convert to fraction form
    92,315.36/138,272.16 = 60,689.72/x
  3. Step 3: Cross multiply
    92,315.36x = 138,272.16 × 60,689.72
  4. Step 4: Simplify right side
    92,315.36x = 8,391,698,674.20
  5. Step 5: Solve for x
    x = 8,391,698,674.20/92,315.36
  6. Step 6: Final answer
    x = 90,902.52

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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.