Home / 75,342.47-103,955.15-45,122.18

Finding the Fourth Proportional to 75,342.47, 103,955.15 and 45,122.18

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Solution

The fourth proportional to 75,342.47, 103,955.15 and 45,122.18 is: 62,258.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,342.47 : 103,955.15 = 45,122.18 : x
  2. Step 2: Convert to fraction form
    75,342.47/103,955.15 = 45,122.18/x
  3. Step 3: Cross multiply
    75,342.47x = 103,955.15 × 45,122.18
  4. Step 4: Simplify right side
    75,342.47x = 4,690,682,764.62
  5. Step 5: Solve for x
    x = 4,690,682,764.62/75,342.47
  6. Step 6: Final answer
    x = 62,258.15

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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.