Home / 90,902.67-136,355.40-28,573.17

Finding the Fourth Proportional to 90,902.67, 136,355.40 and 28,573.17

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Solution

The fourth proportional to 90,902.67, 136,355.40 and 28,573.17 is: 42,860.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,902.67 : 136,355.40 = 28,573.17 : x
  2. Step 2: Convert to fraction form
    90,902.67/136,355.40 = 28,573.17/x
  3. Step 3: Cross multiply
    90,902.67x = 136,355.40 × 28,573.17
  4. Step 4: Simplify right side
    90,902.67x = 3,896,106,024.62
  5. Step 5: Solve for x
    x = 3,896,106,024.62/90,902.67
  6. Step 6: Final answer
    x = 42,860.19

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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.