Home / 76,524.36-105,598.50-42,530.64

Finding the Fourth Proportional to 76,524.36, 105,598.50 and 42,530.64

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Solution

The fourth proportional to 76,524.36, 105,598.50 and 42,530.64 is: 58,689.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,524.36 : 105,598.50 = 42,530.64 : x
  2. Step 2: Convert to fraction form
    76,524.36/105,598.50 = 42,530.64/x
  3. Step 3: Cross multiply
    76,524.36x = 105,598.50 × 42,530.64
  4. Step 4: Simplify right side
    76,524.36x = 4,491,171,788.04
  5. Step 5: Solve for x
    x = 4,491,171,788.04/76,524.36
  6. Step 6: Final answer
    x = 58,689.44

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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.