Home / 90,074.46-124,290.05-51,313.30

Finding the Fourth Proportional to 90,074.46, 124,290.05 and 51,313.30

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Solution

The fourth proportional to 90,074.46, 124,290.05 and 51,313.30 is: 70,805.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,074.46 : 124,290.05 = 51,313.30 : x
  2. Step 2: Convert to fraction form
    90,074.46/124,290.05 = 51,313.30/x
  3. Step 3: Cross multiply
    90,074.46x = 124,290.05 × 51,313.30
  4. Step 4: Simplify right side
    90,074.46x = 6,377,733,061.67
  5. Step 5: Solve for x
    x = 6,377,733,061.67/90,074.46
  6. Step 6: Final answer
    x = 70,805.12

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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.