Home / 42,117.99-63,122.45-17,129.01

Finding the Fourth Proportional to 42,117.99, 63,122.45 and 17,129.01

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Solution

The fourth proportional to 42,117.99, 63,122.45 and 17,129.01 is: 25,671.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,117.99 : 63,122.45 = 17,129.01 : x
  2. Step 2: Convert to fraction form
    42,117.99/63,122.45 = 17,129.01/x
  3. Step 3: Cross multiply
    42,117.99x = 63,122.45 × 17,129.01
  4. Step 4: Simplify right side
    42,117.99x = 1,081,224,873.27
  5. Step 5: Solve for x
    x = 1,081,224,873.27/42,117.99
  6. Step 6: Final answer
    x = 25,671.33

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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.