Home / 55,404.20-76,391.10-38,423.16

Finding the Fourth Proportional to 55,404.20, 76,391.10 and 38,423.16

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Solution

The fourth proportional to 55,404.20, 76,391.10 and 38,423.16 is: 52,977.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,404.20 : 76,391.10 = 38,423.16 : x
  2. Step 2: Convert to fraction form
    55,404.20/76,391.10 = 38,423.16/x
  3. Step 3: Cross multiply
    55,404.20x = 76,391.10 × 38,423.16
  4. Step 4: Simplify right side
    55,404.20x = 2,935,187,457.88
  5. Step 5: Solve for x
    x = 2,935,187,457.88/55,404.20
  6. Step 6: Final answer
    x = 52,977.70

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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.