Home / 57,519.12-86,271.28-42,749.56

Finding the Fourth Proportional to 57,519.12, 86,271.28 and 42,749.56

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Solution

The fourth proportional to 57,519.12, 86,271.28 and 42,749.56 is: 64,118.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,519.12 : 86,271.28 = 42,749.56 : x
  2. Step 2: Convert to fraction form
    57,519.12/86,271.28 = 42,749.56/x
  3. Step 3: Cross multiply
    57,519.12x = 86,271.28 × 42,749.56
  4. Step 4: Simplify right side
    57,519.12x = 3,688,059,260.64
  5. Step 5: Solve for x
    x = 3,688,059,260.64/57,519.12
  6. Step 6: Final answer
    x = 64,118.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.