Home / 90,780.32-136,210.96-46,383.68

Finding the Fourth Proportional to 90,780.32, 136,210.96 and 46,383.68

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Solution

The fourth proportional to 90,780.32, 136,210.96 and 46,383.68 is: 69,596.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,780.32 : 136,210.96 = 46,383.68 : x
  2. Step 2: Convert to fraction form
    90,780.32/136,210.96 = 46,383.68/x
  3. Step 3: Cross multiply
    90,780.32x = 136,210.96 × 46,383.68
  4. Step 4: Simplify right side
    90,780.32x = 6,317,965,581.13
  5. Step 5: Solve for x
    x = 6,317,965,581.13/90,780.32
  6. Step 6: Final answer
    x = 69,596.20

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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.