Home / 78,347.28-108,108.36-46,083.36

Finding the Fourth Proportional to 78,347.28, 108,108.36 and 46,083.36

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Solution

The fourth proportional to 78,347.28, 108,108.36 and 46,083.36 is: 63,588.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,347.28 : 108,108.36 = 46,083.36 : x
  2. Step 2: Convert to fraction form
    78,347.28/108,108.36 = 46,083.36/x
  3. Step 3: Cross multiply
    78,347.28x = 108,108.36 × 46,083.36
  4. Step 4: Simplify right side
    78,347.28x = 4,981,996,472.89
  5. Step 5: Solve for x
    x = 4,981,996,472.89/78,347.28
  6. Step 6: Final answer
    x = 63,588.63

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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.