Home / 76,515.13-105,590.78-42,522.54

Finding the Fourth Proportional to 76,515.13, 105,590.78 and 42,522.54

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Solution

The fourth proportional to 76,515.13, 105,590.78 and 42,522.54 is: 58,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,515.13 : 105,590.78 = 42,522.54 : x
  2. Step 2: Convert to fraction form
    76,515.13/105,590.78 = 42,522.54/x
  3. Step 3: Cross multiply
    76,515.13x = 105,590.78 × 42,522.54
  4. Step 4: Simplify right side
    76,515.13x = 4,489,988,272.49
  5. Step 5: Solve for x
    x = 4,489,988,272.49/76,515.13
  6. Step 6: Final answer
    x = 58,681.05

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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.