Home / 39,989.94-55,073.88-39,117.96

Finding the Fourth Proportional to 39,989.94, 55,073.88 and 39,117.96

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Solution

The fourth proportional to 39,989.94, 55,073.88 and 39,117.96 is: 53,872.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,989.94 : 55,073.88 = 39,117.96 : x
  2. Step 2: Convert to fraction form
    39,989.94/55,073.88 = 39,117.96/x
  3. Step 3: Cross multiply
    39,989.94x = 55,073.88 × 39,117.96
  4. Step 4: Simplify right side
    39,989.94x = 2,154,377,834.88
  5. Step 5: Solve for x
    x = 2,154,377,834.88/39,989.94
  6. Step 6: Final answer
    x = 53,872.99

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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.