Home / 90,726.76-136,102.06-31,566.92

Finding the Fourth Proportional to 90,726.76, 136,102.06 and 31,566.92

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Solution

The fourth proportional to 90,726.76, 136,102.06 and 31,566.92 is: 47,354.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,726.76 : 136,102.06 = 31,566.92 : x
  2. Step 2: Convert to fraction form
    90,726.76/136,102.06 = 31,566.92/x
  3. Step 3: Cross multiply
    90,726.76x = 136,102.06 × 31,566.92
  4. Step 4: Simplify right side
    90,726.76x = 4,296,322,839.86
  5. Step 5: Solve for x
    x = 4,296,322,839.86/90,726.76
  6. Step 6: Final answer
    x = 47,354.53

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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.