Home / 56,423.82-77,889.68-39,494.55

Finding the Fourth Proportional to 56,423.82, 77,889.68 and 39,494.55

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Solution

The fourth proportional to 56,423.82, 77,889.68 and 39,494.55 is: 54,519.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,423.82 : 77,889.68 = 39,494.55 : x
  2. Step 2: Convert to fraction form
    56,423.82/77,889.68 = 39,494.55/x
  3. Step 3: Cross multiply
    56,423.82x = 77,889.68 × 39,494.55
  4. Step 4: Simplify right side
    56,423.82x = 3,076,217,663.77
  5. Step 5: Solve for x
    x = 3,076,217,663.77/56,423.82
  6. Step 6: Final answer
    x = 54,519.84

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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.