Home / 90,878.64-136,296.77-34,698.12

Finding the Fourth Proportional to 90,878.64, 136,296.77 and 34,698.12

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Solution

The fourth proportional to 90,878.64, 136,296.77 and 34,698.12 is: 52,039.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,878.64 : 136,296.77 = 34,698.12 : x
  2. Step 2: Convert to fraction form
    90,878.64/136,296.77 = 34,698.12/x
  3. Step 3: Cross multiply
    90,878.64x = 136,296.77 × 34,698.12
  4. Step 4: Simplify right side
    90,878.64x = 4,729,241,507.58
  5. Step 5: Solve for x
    x = 4,729,241,507.58/90,878.64
  6. Step 6: Final answer
    x = 52,039.09

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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.