Home / 75,322.10-112,942.15-48,664.40

Finding the Fourth Proportional to 75,322.10, 112,942.15 and 48,664.40

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Solution

The fourth proportional to 75,322.10, 112,942.15 and 48,664.40 is: 72,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,322.10 : 112,942.15 = 48,664.40 : x
  2. Step 2: Convert to fraction form
    75,322.10/112,942.15 = 48,664.40/x
  3. Step 3: Cross multiply
    75,322.10x = 112,942.15 × 48,664.40
  4. Step 4: Simplify right side
    75,322.10x = 5,496,261,278.09
  5. Step 5: Solve for x
    x = 5,496,261,278.09/75,322.10
  6. Step 6: Final answer
    x = 72,970.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.