Home / 90,465.39-135,781.34-46,125.18

Finding the Fourth Proportional to 90,465.39, 135,781.34 and 46,125.18

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Solution

The fourth proportional to 90,465.39, 135,781.34 and 46,125.18 is: 69,230.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,465.39 : 135,781.34 = 46,125.18 : x
  2. Step 2: Convert to fraction form
    90,465.39/135,781.34 = 46,125.18/x
  3. Step 3: Cross multiply
    90,465.39x = 135,781.34 × 46,125.18
  4. Step 4: Simplify right side
    90,465.39x = 6,262,938,517.52
  5. Step 5: Solve for x
    x = 6,262,938,517.52/90,465.39
  6. Step 6: Final answer
    x = 69,230.22

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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.