Home / 88,213.32-121,735.20-47,927.40

Finding the Fourth Proportional to 88,213.32, 121,735.20 and 47,927.40

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Solution

The fourth proportional to 88,213.32, 121,735.20 and 47,927.40 is: 66,140.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,213.32 : 121,735.20 = 47,927.40 : x
  2. Step 2: Convert to fraction form
    88,213.32/121,735.20 = 47,927.40/x
  3. Step 3: Cross multiply
    88,213.32x = 121,735.20 × 47,927.40
  4. Step 4: Simplify right side
    88,213.32x = 5,834,451,624.48
  5. Step 5: Solve for x
    x = 5,834,451,624.48/88,213.32
  6. Step 6: Final answer
    x = 66,140.26

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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.