Home / 55,384.32-76,350.40-39,462.72

Finding the Fourth Proportional to 55,384.32, 76,350.40 and 39,462.72

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Solution

The fourth proportional to 55,384.32, 76,350.40 and 39,462.72 is: 54,401.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,384.32 : 76,350.40 = 39,462.72 : x
  2. Step 2: Convert to fraction form
    55,384.32/76,350.40 = 39,462.72/x
  3. Step 3: Cross multiply
    55,384.32x = 76,350.40 × 39,462.72
  4. Step 4: Simplify right side
    55,384.32x = 3,012,994,457.09
  5. Step 5: Solve for x
    x = 3,012,994,457.09/55,384.32
  6. Step 6: Final answer
    x = 54,401.58

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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.