Home / 98,077.04-135,342.32-55,634.66

Finding the Fourth Proportional to 98,077.04, 135,342.32 and 55,634.66

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Solution

The fourth proportional to 98,077.04, 135,342.32 and 55,634.66 is: 76,773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,077.04 : 135,342.32 = 55,634.66 : x
  2. Step 2: Convert to fraction form
    98,077.04/135,342.32 = 55,634.66/x
  3. Step 3: Cross multiply
    98,077.04x = 135,342.32 × 55,634.66
  4. Step 4: Simplify right side
    98,077.04x = 7,529,723,956.81
  5. Step 5: Solve for x
    x = 7,529,723,956.81/98,077.04
  6. Step 6: Final answer
    x = 76,773.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.