Home / 57,665.11-79,459.77-42,533.80

Finding the Fourth Proportional to 57,665.11, 79,459.77 and 42,533.80

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Solution

The fourth proportional to 57,665.11, 79,459.77 and 42,533.80 is: 58,609.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,665.11 : 79,459.77 = 42,533.80 : x
  2. Step 2: Convert to fraction form
    57,665.11/79,459.77 = 42,533.80/x
  3. Step 3: Cross multiply
    57,665.11x = 79,459.77 × 42,533.80
  4. Step 4: Simplify right side
    57,665.11x = 3,379,725,965.23
  5. Step 5: Solve for x
    x = 3,379,725,965.23/57,665.11
  6. Step 6: Final answer
    x = 58,609.55

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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.