Home / 42,750.84-64,126.32-11,586.12

Finding the Fourth Proportional to 42,750.84, 64,126.32 and 11,586.12

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Solution

The fourth proportional to 42,750.84, 64,126.32 and 11,586.12 is: 17,379.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,750.84 : 64,126.32 = 11,586.12 : x
  2. Step 2: Convert to fraction form
    42,750.84/64,126.32 = 11,586.12/x
  3. Step 3: Cross multiply
    42,750.84x = 64,126.32 × 11,586.12
  4. Step 4: Simplify right side
    42,750.84x = 742,975,238.68
  5. Step 5: Solve for x
    x = 742,975,238.68/42,750.84
  6. Step 6: Final answer
    x = 17,379.20

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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.