Home / 70,815.90-97,674.57-48,115.20

Finding the Fourth Proportional to 70,815.90, 97,674.57 and 48,115.20

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Solution

The fourth proportional to 70,815.90, 97,674.57 and 48,115.20 is: 66,364.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,815.90 : 97,674.57 = 48,115.20 : x
  2. Step 2: Convert to fraction form
    70,815.90/97,674.57 = 48,115.20/x
  3. Step 3: Cross multiply
    70,815.90x = 97,674.57 × 48,115.20
  4. Step 4: Simplify right side
    70,815.90x = 4,699,631,470.46
  5. Step 5: Solve for x
    x = 4,699,631,470.46/70,815.90
  6. Step 6: Final answer
    x = 66,364.07

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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.