Home / 76,285.41-105,280.07-42,304.53

Finding the Fourth Proportional to 76,285.41, 105,280.07 and 42,304.53

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Solution

The fourth proportional to 76,285.41, 105,280.07 and 42,304.53 is: 58,383.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,285.41 : 105,280.07 = 42,304.53 : x
  2. Step 2: Convert to fraction form
    76,285.41/105,280.07 = 42,304.53/x
  3. Step 3: Cross multiply
    76,285.41x = 105,280.07 × 42,304.53
  4. Step 4: Simplify right side
    76,285.41x = 4,453,823,668.19
  5. Step 5: Solve for x
    x = 4,453,823,668.19/76,285.41
  6. Step 6: Final answer
    x = 58,383.69

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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.