Home / 75,018.42-103,431.32-48,113.46

Finding the Fourth Proportional to 75,018.42, 103,431.32 and 48,113.46

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Solution

The fourth proportional to 75,018.42, 103,431.32 and 48,113.46 is: 66,336.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,018.42 : 103,431.32 = 48,113.46 : x
  2. Step 2: Convert to fraction form
    75,018.42/103,431.32 = 48,113.46/x
  3. Step 3: Cross multiply
    75,018.42x = 103,431.32 × 48,113.46
  4. Step 4: Simplify right side
    75,018.42x = 4,976,438,677.57
  5. Step 5: Solve for x
    x = 4,976,438,677.57/75,018.42
  6. Step 6: Final answer
    x = 66,336.22

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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.