Home / 90,620.43-135,898.29-34,445.58

Finding the Fourth Proportional to 90,620.43, 135,898.29 and 34,445.58

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Solution

The fourth proportional to 90,620.43, 135,898.29 and 34,445.58 is: 51,656.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,620.43 : 135,898.29 = 34,445.58 : x
  2. Step 2: Convert to fraction form
    90,620.43/135,898.29 = 34,445.58/x
  3. Step 3: Cross multiply
    90,620.43x = 135,898.29 × 34,445.58
  4. Step 4: Simplify right side
    90,620.43x = 4,681,095,420.06
  5. Step 5: Solve for x
    x = 4,681,095,420.06/90,620.43
  6. Step 6: Final answer
    x = 51,656.07

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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.