Home / 90,197.92-135,263.52-31,017.28

Finding the Fourth Proportional to 90,197.92, 135,263.52 and 31,017.28

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Solution

The fourth proportional to 90,197.92, 135,263.52 and 31,017.28 is: 46,514.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,197.92 : 135,263.52 = 31,017.28 : x
  2. Step 2: Convert to fraction form
    90,197.92/135,263.52 = 31,017.28/x
  3. Step 3: Cross multiply
    90,197.92x = 135,263.52 × 31,017.28
  4. Step 4: Simplify right side
    90,197.92x = 4,195,506,473.63
  5. Step 5: Solve for x
    x = 4,195,506,473.63/90,197.92
  6. Step 6: Final answer
    x = 46,514.45

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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.