Home / 65,310.74-90,044.27-42,299.63

Finding the Fourth Proportional to 65,310.74, 90,044.27 and 42,299.63

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Solution

The fourth proportional to 65,310.74, 90,044.27 and 42,299.63 is: 58,318.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,310.74 : 90,044.27 = 42,299.63 : x
  2. Step 2: Convert to fraction form
    65,310.74/90,044.27 = 42,299.63/x
  3. Step 3: Cross multiply
    65,310.74x = 90,044.27 × 42,299.63
  4. Step 4: Simplify right side
    65,310.74x = 3,808,839,304.62
  5. Step 5: Solve for x
    x = 3,808,839,304.62/65,310.74
  6. Step 6: Final answer
    x = 58,318.73

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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.