Home / 76,556.14-105,652.22-42,564.90

Finding the Fourth Proportional to 76,556.14, 105,652.22 and 42,564.90

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Solution

The fourth proportional to 76,556.14, 105,652.22 and 42,564.90 is: 58,742.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,556.14 : 105,652.22 = 42,564.90 : x
  2. Step 2: Convert to fraction form
    76,556.14/105,652.22 = 42,564.90/x
  3. Step 3: Cross multiply
    76,556.14x = 105,652.22 × 42,564.90
  4. Step 4: Simplify right side
    76,556.14x = 4,497,076,179.08
  5. Step 5: Solve for x
    x = 4,497,076,179.08/76,556.14
  6. Step 6: Final answer
    x = 58,742.20

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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.