Home / 87,184.80-120,315.60-49,459.68

Finding the Fourth Proportional to 87,184.80, 120,315.60 and 49,459.68

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Solution

The fourth proportional to 87,184.80, 120,315.60 and 49,459.68 is: 68,254.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,184.80 : 120,315.60 = 49,459.68 : x
  2. Step 2: Convert to fraction form
    87,184.80/120,315.60 = 49,459.68/x
  3. Step 3: Cross multiply
    87,184.80x = 120,315.60 × 49,459.68
  4. Step 4: Simplify right side
    87,184.80x = 5,950,771,075.01
  5. Step 5: Solve for x
    x = 5,950,771,075.01/87,184.80
  6. Step 6: Final answer
    x = 68,254.69

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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.