Home / 92,981.52-128,314.80-50,540.22

Finding the Fourth Proportional to 92,981.52, 128,314.80 and 50,540.22

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Solution

The fourth proportional to 92,981.52, 128,314.80 and 50,540.22 is: 69,745.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,981.52 : 128,314.80 = 50,540.22 : x
  2. Step 2: Convert to fraction form
    92,981.52/128,314.80 = 50,540.22/x
  3. Step 3: Cross multiply
    92,981.52x = 128,314.80 × 50,540.22
  4. Step 4: Simplify right side
    92,981.52x = 6,485,058,221.26
  5. Step 5: Solve for x
    x = 6,485,058,221.26/92,981.52
  6. Step 6: Final answer
    x = 69,745.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.