Home / 81,366.51-112,280.14-54,504.69

Finding the Fourth Proportional to 81,366.51, 112,280.14 and 54,504.69

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Solution

The fourth proportional to 81,366.51, 112,280.14 and 54,504.69 is: 75,212.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,366.51 : 112,280.14 = 54,504.69 : x
  2. Step 2: Convert to fraction form
    81,366.51/112,280.14 = 54,504.69/x
  3. Step 3: Cross multiply
    81,366.51x = 112,280.14 × 54,504.69
  4. Step 4: Simplify right side
    81,366.51x = 6,119,794,223.86
  5. Step 5: Solve for x
    x = 6,119,794,223.86/81,366.51
  6. Step 6: Final answer
    x = 75,212.69

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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.