Home / 90,726.96-136,093.50-31,563.12

Finding the Fourth Proportional to 90,726.96, 136,093.50 and 31,563.12

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Solution

The fourth proportional to 90,726.96, 136,093.50 and 31,563.12 is: 47,345.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,726.96 : 136,093.50 = 31,563.12 : x
  2. Step 2: Convert to fraction form
    90,726.96/136,093.50 = 31,563.12/x
  3. Step 3: Cross multiply
    90,726.96x = 136,093.50 × 31,563.12
  4. Step 4: Simplify right side
    90,726.96x = 4,295,535,815.67
  5. Step 5: Solve for x
    x = 4,295,535,815.67/90,726.96
  6. Step 6: Final answer
    x = 47,345.75

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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.