Home / 75,090.40-103,636.44-42,825.08

Finding the Fourth Proportional to 75,090.40, 103,636.44 and 42,825.08

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Solution

The fourth proportional to 75,090.40, 103,636.44 and 42,825.08 is: 59,105.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,090.40 : 103,636.44 = 42,825.08 : x
  2. Step 2: Convert to fraction form
    75,090.40/103,636.44 = 42,825.08/x
  3. Step 3: Cross multiply
    75,090.40x = 103,636.44 × 42,825.08
  4. Step 4: Simplify right side
    75,090.40x = 4,438,238,833.92
  5. Step 5: Solve for x
    x = 4,438,238,833.92/75,090.40
  6. Step 6: Final answer
    x = 59,105.28

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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.