Home / 43,139.57-64,720.09-34,288.30

Finding the Fourth Proportional to 43,139.57, 64,720.09 and 34,288.30

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Solution

The fourth proportional to 43,139.57, 64,720.09 and 34,288.30 is: 51,440.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,139.57 : 64,720.09 = 34,288.30 : x
  2. Step 2: Convert to fraction form
    43,139.57/64,720.09 = 34,288.30/x
  3. Step 3: Cross multiply
    43,139.57x = 64,720.09 × 34,288.30
  4. Step 4: Simplify right side
    43,139.57x = 2,219,141,743.01
  5. Step 5: Solve for x
    x = 2,219,141,743.01/43,139.57
  6. Step 6: Final answer
    x = 51,440.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.