Home / 43,125.31-64,678.23-11,962.99

Finding the Fourth Proportional to 43,125.31, 64,678.23 and 11,962.99

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Solution

The fourth proportional to 43,125.31, 64,678.23 and 11,962.99 is: 17,941.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,125.31 : 64,678.23 = 11,962.99 : x
  2. Step 2: Convert to fraction form
    43,125.31/64,678.23 = 11,962.99/x
  3. Step 3: Cross multiply
    43,125.31x = 64,678.23 × 11,962.99
  4. Step 4: Simplify right side
    43,125.31x = 773,745,018.71
  5. Step 5: Solve for x
    x = 773,745,018.71/43,125.31
  6. Step 6: Final answer
    x = 17,941.78

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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.