Home / 88,265.44-121,805.36-65,705.32

Finding the Fourth Proportional to 88,265.44, 121,805.36 and 65,705.32

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Solution

The fourth proportional to 88,265.44, 121,805.36 and 65,705.32 is: 90,672.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,265.44 : 121,805.36 = 65,705.32 : x
  2. Step 2: Convert to fraction form
    88,265.44/121,805.36 = 65,705.32/x
  3. Step 3: Cross multiply
    88,265.44x = 121,805.36 × 65,705.32
  4. Step 4: Simplify right side
    88,265.44x = 8,003,260,156.52
  5. Step 5: Solve for x
    x = 8,003,260,156.52/88,265.44
  6. Step 6: Final answer
    x = 90,672.64

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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.