Home / 57,320.04-79,161.72-39,461.16

Finding the Fourth Proportional to 57,320.04, 79,161.72 and 39,461.16

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Solution

The fourth proportional to 57,320.04, 79,161.72 and 39,461.16 is: 54,497.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,320.04 : 79,161.72 = 39,461.16 : x
  2. Step 2: Convert to fraction form
    57,320.04/79,161.72 = 39,461.16/x
  3. Step 3: Cross multiply
    57,320.04x = 79,161.72 × 39,461.16
  4. Step 4: Simplify right side
    57,320.04x = 3,123,813,298.80
  5. Step 5: Solve for x
    x = 3,123,813,298.80/57,320.04
  6. Step 6: Final answer
    x = 54,497.75

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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.