Home / 90,892.12-136,274.93-40,263.66

Finding the Fourth Proportional to 90,892.12, 136,274.93 and 40,263.66

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Solution

The fourth proportional to 90,892.12, 136,274.93 and 40,263.66 is: 60,367.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,892.12 : 136,274.93 = 40,263.66 : x
  2. Step 2: Convert to fraction form
    90,892.12/136,274.93 = 40,263.66/x
  3. Step 3: Cross multiply
    90,892.12x = 136,274.93 × 40,263.66
  4. Step 4: Simplify right side
    90,892.12x = 5,486,926,565.35
  5. Step 5: Solve for x
    x = 5,486,926,565.35/90,892.12
  6. Step 6: Final answer
    x = 60,367.46

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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.