Home / 87,703.87-120,950.58-57,478.18

Finding the Fourth Proportional to 87,703.87, 120,950.58 and 57,478.18

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Solution

The fourth proportional to 87,703.87, 120,950.58 and 57,478.18 is: 79,266.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,703.87 : 120,950.58 = 57,478.18 : x
  2. Step 2: Convert to fraction form
    87,703.87/120,950.58 = 57,478.18/x
  3. Step 3: Cross multiply
    87,703.87x = 120,950.58 × 57,478.18
  4. Step 4: Simplify right side
    87,703.87x = 6,952,019,208.34
  5. Step 5: Solve for x
    x = 6,952,019,208.34/87,703.87
  6. Step 6: Final answer
    x = 79,266.96

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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.