Home / 55,389.92-76,437.12-31,516.08

Finding the Fourth Proportional to 55,389.92, 76,437.12 and 31,516.08

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Solution

The fourth proportional to 55,389.92, 76,437.12 and 31,516.08 is: 43,491.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,389.92 : 76,437.12 = 31,516.08 : x
  2. Step 2: Convert to fraction form
    55,389.92/76,437.12 = 31,516.08/x
  3. Step 3: Cross multiply
    55,389.92x = 76,437.12 × 31,516.08
  4. Step 4: Simplify right side
    55,389.92x = 2,408,998,388.89
  5. Step 5: Solve for x
    x = 2,408,998,388.89/55,389.92
  6. Step 6: Final answer
    x = 43,491.64

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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.