Home / 75,903.40-104,755.57-63,134.05

Finding the Fourth Proportional to 75,903.40, 104,755.57 and 63,134.05

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Solution

The fourth proportional to 75,903.40, 104,755.57 and 63,134.05 is: 87,132.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,903.40 : 104,755.57 = 63,134.05 : x
  2. Step 2: Convert to fraction form
    75,903.40/104,755.57 = 63,134.05/x
  3. Step 3: Cross multiply
    75,903.40x = 104,755.57 × 63,134.05
  4. Step 4: Simplify right side
    75,903.40x = 6,613,643,394.16
  5. Step 5: Solve for x
    x = 6,613,643,394.16/75,903.40
  6. Step 6: Final answer
    x = 87,132.37

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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.