Home / 84,782.43-127,200.38-53,214.45

Finding the Fourth Proportional to 84,782.43, 127,200.38 and 53,214.45

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Solution

The fourth proportional to 84,782.43, 127,200.38 and 53,214.45 is: 79,838.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,782.43 : 127,200.38 = 53,214.45 : x
  2. Step 2: Convert to fraction form
    84,782.43/127,200.38 = 53,214.45/x
  3. Step 3: Cross multiply
    84,782.43x = 127,200.38 × 53,214.45
  4. Step 4: Simplify right side
    84,782.43x = 6,768,898,261.49
  5. Step 5: Solve for x
    x = 6,768,898,261.49/84,782.43
  6. Step 6: Final answer
    x = 79,838.46

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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.