Home / 52,811.64-72,880.05-28,939.23

Finding the Fourth Proportional to 52,811.64, 72,880.05 and 28,939.23

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Solution

The fourth proportional to 52,811.64, 72,880.05 and 28,939.23 is: 39,936.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,811.64 : 72,880.05 = 28,939.23 : x
  2. Step 2: Convert to fraction form
    52,811.64/72,880.05 = 28,939.23/x
  3. Step 3: Cross multiply
    52,811.64x = 72,880.05 × 28,939.23
  4. Step 4: Simplify right side
    52,811.64x = 2,109,092,529.36
  5. Step 5: Solve for x
    x = 2,109,092,529.36/52,811.64
  6. Step 6: Final answer
    x = 39,936.13

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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.