Home / 98,758.77-136,286.09-53,435.76

Finding the Fourth Proportional to 98,758.77, 136,286.09 and 53,435.76

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Solution

The fourth proportional to 98,758.77, 136,286.09 and 53,435.76 is: 73,740.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,758.77 : 136,286.09 = 53,435.76 : x
  2. Step 2: Convert to fraction form
    98,758.77/136,286.09 = 53,435.76/x
  3. Step 3: Cross multiply
    98,758.77x = 136,286.09 × 53,435.76
  4. Step 4: Simplify right side
    98,758.77x = 7,282,550,519.29
  5. Step 5: Solve for x
    x = 7,282,550,519.29/98,758.77
  6. Step 6: Final answer
    x = 73,740.80

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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.