Home / 45,150.08-67,742.40-21,774.56

Finding the Fourth Proportional to 45,150.08, 67,742.40 and 21,774.56

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Solution

The fourth proportional to 45,150.08, 67,742.40 and 21,774.56 is: 32,670.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,150.08 : 67,742.40 = 21,774.56 : x
  2. Step 2: Convert to fraction form
    45,150.08/67,742.40 = 21,774.56/x
  3. Step 3: Cross multiply
    45,150.08x = 67,742.40 × 21,774.56
  4. Step 4: Simplify right side
    45,150.08x = 1,475,060,953.34
  5. Step 5: Solve for x
    x = 1,475,060,953.34/45,150.08
  6. Step 6: Final answer
    x = 32,670.17

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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.