Home / 90,617.14-135,925.71-28,292.98

Finding the Fourth Proportional to 90,617.14, 135,925.71 and 28,292.98

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Solution

The fourth proportional to 90,617.14, 135,925.71 and 28,292.98 is: 42,439.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,617.14 : 135,925.71 = 28,292.98 : x
  2. Step 2: Convert to fraction form
    90,617.14/135,925.71 = 28,292.98/x
  3. Step 3: Cross multiply
    90,617.14x = 135,925.71 × 28,292.98
  4. Step 4: Simplify right side
    90,617.14x = 3,845,743,394.52
  5. Step 5: Solve for x
    x = 3,845,743,394.52/90,617.14
  6. Step 6: Final answer
    x = 42,439.47

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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.