Home / 98,437.90-135,797.07-64,431.42

Finding the Fourth Proportional to 98,437.90, 135,797.07 and 64,431.42

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Solution

The fourth proportional to 98,437.90, 135,797.07 and 64,431.42 is: 88,884.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,437.90 : 135,797.07 = 64,431.42 : x
  2. Step 2: Convert to fraction form
    98,437.90/135,797.07 = 64,431.42/x
  3. Step 3: Cross multiply
    98,437.90x = 135,797.07 × 64,431.42
  4. Step 4: Simplify right side
    98,437.90x = 8,749,598,051.94
  5. Step 5: Solve for x
    x = 8,749,598,051.94/98,437.90
  6. Step 6: Final answer
    x = 88,884.44

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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.