Home / 90,985.16-136,494.20-31,010.33

Finding the Fourth Proportional to 90,985.16, 136,494.20 and 31,010.33

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Solution

The fourth proportional to 90,985.16, 136,494.20 and 31,010.33 is: 46,521.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,985.16 : 136,494.20 = 31,010.33 : x
  2. Step 2: Convert to fraction form
    90,985.16/136,494.20 = 31,010.33/x
  3. Step 3: Cross multiply
    90,985.16x = 136,494.20 × 31,010.33
  4. Step 4: Simplify right side
    90,985.16x = 4,232,730,603.85
  5. Step 5: Solve for x
    x = 4,232,730,603.85/90,985.16
  6. Step 6: Final answer
    x = 46,521.11

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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.