Home / 75,842.07-113,781.44-28,457.56

Finding the Fourth Proportional to 75,842.07, 113,781.44 and 28,457.56

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Solution

The fourth proportional to 75,842.07, 113,781.44 and 28,457.56 is: 42,693.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,842.07 : 113,781.44 = 28,457.56 : x
  2. Step 2: Convert to fraction form
    75,842.07/113,781.44 = 28,457.56/x
  3. Step 3: Cross multiply
    75,842.07x = 113,781.44 × 28,457.56
  4. Step 4: Simplify right side
    75,842.07x = 3,237,941,444.49
  5. Step 5: Solve for x
    x = 3,237,941,444.49/75,842.07
  6. Step 6: Final answer
    x = 42,693.21

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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.