Home / 51,345.10-70,826.68-30,912.96

Finding the Fourth Proportional to 51,345.10, 70,826.68 and 30,912.96

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Solution

The fourth proportional to 51,345.10, 70,826.68 and 30,912.96 is: 42,642.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,345.10 : 70,826.68 = 30,912.96 : x
  2. Step 2: Convert to fraction form
    51,345.10/70,826.68 = 30,912.96/x
  3. Step 3: Cross multiply
    51,345.10x = 70,826.68 × 30,912.96
  4. Step 4: Simplify right side
    51,345.10x = 2,189,462,325.77
  5. Step 5: Solve for x
    x = 2,189,462,325.77/51,345.10
  6. Step 6: Final answer
    x = 42,642.09

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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.