Home / 51,939.34-77,909.01-12,496.45

Finding the Fourth Proportional to 51,939.34, 77,909.01 and 12,496.45

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Solution

The fourth proportional to 51,939.34, 77,909.01 and 12,496.45 is: 18,744.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,939.34 : 77,909.01 = 12,496.45 : x
  2. Step 2: Convert to fraction form
    51,939.34/77,909.01 = 12,496.45/x
  3. Step 3: Cross multiply
    51,939.34x = 77,909.01 × 12,496.45
  4. Step 4: Simplify right side
    51,939.34x = 973,585,985.53
  5. Step 5: Solve for x
    x = 973,585,985.53/51,939.34
  6. Step 6: Final answer
    x = 18,744.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.