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Finding the Fourth Proportional to 90,842, 136,262.04 and 35,476.88

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Solution

The fourth proportional to 90,842, 136,262.04 and 35,476.88 is: 53,214.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,842 : 136,262.04 = 35,476.88 : x
  2. Step 2: Convert to fraction form
    90,842/136,262.04 = 35,476.88/x
  3. Step 3: Cross multiply
    90,842x = 136,262.04 × 35,476.88
  4. Step 4: Simplify right side
    90,842x = 4,834,152,041.64
  5. Step 5: Solve for x
    x = 4,834,152,041.64/90,842
  6. Step 6: Final answer
    x = 53,214.95

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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.