Home / 87,534.96-120,629.70-63,623.76

Finding the Fourth Proportional to 87,534.96, 120,629.70 and 63,623.76

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Solution

The fourth proportional to 87,534.96, 120,629.70 and 63,623.76 is: 87,678.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,534.96 : 120,629.70 = 63,623.76 : x
  2. Step 2: Convert to fraction form
    87,534.96/120,629.70 = 63,623.76/x
  3. Step 3: Cross multiply
    87,534.96x = 120,629.70 × 63,623.76
  4. Step 4: Simplify right side
    87,534.96x = 7,674,915,081.67
  5. Step 5: Solve for x
    x = 7,674,915,081.67/87,534.96
  6. Step 6: Final answer
    x = 87,678.28

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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.