Home / 90,437.12-135,653.62-23,881.92

Finding the Fourth Proportional to 90,437.12, 135,653.62 and 23,881.92

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Solution

The fourth proportional to 90,437.12, 135,653.62 and 23,881.92 is: 35,822.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,437.12 : 135,653.62 = 23,881.92 : x
  2. Step 2: Convert to fraction form
    90,437.12/135,653.62 = 23,881.92/x
  3. Step 3: Cross multiply
    90,437.12x = 135,653.62 × 23,881.92
  4. Step 4: Simplify right side
    90,437.12x = 3,239,668,900.55
  5. Step 5: Solve for x
    x = 3,239,668,900.55/90,437.12
  6. Step 6: Final answer
    x = 35,822.34

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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.