Home / 87,009.12-120,075.84-48,247.92

Finding the Fourth Proportional to 87,009.12, 120,075.84 and 48,247.92

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Solution

The fourth proportional to 87,009.12, 120,075.84 and 48,247.92 is: 66,583.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,009.12 : 120,075.84 = 48,247.92 : x
  2. Step 2: Convert to fraction form
    87,009.12/120,075.84 = 48,247.92/x
  3. Step 3: Cross multiply
    87,009.12x = 120,075.84 × 48,247.92
  4. Step 4: Simplify right side
    87,009.12x = 5,793,409,522.25
  5. Step 5: Solve for x
    x = 5,793,409,522.25/87,009.12
  6. Step 6: Final answer
    x = 66,583.93

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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.