Home / 42,640.55-64,026.43-38,004.11

Finding the Fourth Proportional to 42,640.55, 64,026.43 and 38,004.11

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Solution

The fourth proportional to 42,640.55, 64,026.43 and 38,004.11 is: 57,064.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,640.55 : 64,026.43 = 38,004.11 : x
  2. Step 2: Convert to fraction form
    42,640.55/64,026.43 = 38,004.11/x
  3. Step 3: Cross multiply
    42,640.55x = 64,026.43 × 38,004.11
  4. Step 4: Simplify right side
    42,640.55x = 2,433,267,488.63
  5. Step 5: Solve for x
    x = 2,433,267,488.63/42,640.55
  6. Step 6: Final answer
    x = 57,064.64

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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.