Home / 76,296.28-105,286.98-42,304.90

Finding the Fourth Proportional to 76,296.28, 105,286.98 and 42,304.90

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Solution

The fourth proportional to 76,296.28, 105,286.98 and 42,304.90 is: 58,379.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,296.28 : 105,286.98 = 42,304.90 : x
  2. Step 2: Convert to fraction form
    76,296.28/105,286.98 = 42,304.90/x
  3. Step 3: Cross multiply
    76,296.28x = 105,286.98 × 42,304.90
  4. Step 4: Simplify right side
    76,296.28x = 4,454,155,160.20
  5. Step 5: Solve for x
    x = 4,454,155,160.20/76,296.28
  6. Step 6: Final answer
    x = 58,379.72

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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.