Home / 98,961.75-136,575.86-54,258.39

Finding the Fourth Proportional to 98,961.75, 136,575.86 and 54,258.39

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Solution

The fourth proportional to 98,961.75, 136,575.86 and 54,258.39 is: 74,881.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,961.75 : 136,575.86 = 54,258.39 : x
  2. Step 2: Convert to fraction form
    98,961.75/136,575.86 = 54,258.39/x
  3. Step 3: Cross multiply
    98,961.75x = 136,575.86 × 54,258.39
  4. Step 4: Simplify right side
    98,961.75x = 7,410,386,005.17
  5. Step 5: Solve for x
    x = 7,410,386,005.17/98,961.75
  6. Step 6: Final answer
    x = 74,881.32

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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.