Home / 98,090.39-135,369.18-57,805.85

Finding the Fourth Proportional to 98,090.39, 135,369.18 and 57,805.85

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Solution

The fourth proportional to 98,090.39, 135,369.18 and 57,805.85 is: 79,774.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,090.39 : 135,369.18 = 57,805.85 : x
  2. Step 2: Convert to fraction form
    98,090.39/135,369.18 = 57,805.85/x
  3. Step 3: Cross multiply
    98,090.39x = 135,369.18 × 57,805.85
  4. Step 4: Simplify right side
    98,090.39x = 7,825,130,513.70
  5. Step 5: Solve for x
    x = 7,825,130,513.70/98,090.39
  6. Step 6: Final answer
    x = 79,774.69

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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.