Home / 42,905.16-64,064.25-38,433.96

Finding the Fourth Proportional to 42,905.16, 64,064.25 and 38,433.96

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Solution

The fourth proportional to 42,905.16, 64,064.25 and 38,433.96 is: 57,388.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,905.16 : 64,064.25 = 38,433.96 : x
  2. Step 2: Convert to fraction form
    42,905.16/64,064.25 = 38,433.96/x
  3. Step 3: Cross multiply
    42,905.16x = 64,064.25 × 38,433.96
  4. Step 4: Simplify right side
    42,905.16x = 2,462,242,821.93
  5. Step 5: Solve for x
    x = 2,462,242,821.93/42,905.16
  6. Step 6: Final answer
    x = 57,388.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.