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Finding the Fourth Proportional to 90,903.88, 136,349.82 and 43,552.84

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Solution

The fourth proportional to 90,903.88, 136,349.82 and 43,552.84 is: 65,326.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,903.88 : 136,349.82 = 43,552.84 : x
  2. Step 2: Convert to fraction form
    90,903.88/136,349.82 = 43,552.84/x
  3. Step 3: Cross multiply
    90,903.88x = 136,349.82 × 43,552.84
  4. Step 4: Simplify right side
    90,903.88x = 5,938,421,894.49
  5. Step 5: Solve for x
    x = 5,938,421,894.49/90,903.88
  6. Step 6: Final answer
    x = 65,326.39

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1.5x scale

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.