Home / 42,681.13-64,050.26-17,721.20

Finding the Fourth Proportional to 42,681.13, 64,050.26 and 17,721.20

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Solution

The fourth proportional to 42,681.13, 64,050.26 and 17,721.20 is: 26,593.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,681.13 : 64,050.26 = 17,721.20 : x
  2. Step 2: Convert to fraction form
    42,681.13/64,050.26 = 17,721.20/x
  3. Step 3: Cross multiply
    42,681.13x = 64,050.26 × 17,721.20
  4. Step 4: Simplify right side
    42,681.13x = 1,135,047,467.51
  5. Step 5: Solve for x
    x = 1,135,047,467.51/42,681.13
  6. Step 6: Final answer
    x = 26,593.66

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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.