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Finding the Fourth Proportional to 43,802.40, 65,726.55 and 20,117.10

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Solution

The fourth proportional to 43,802.40, 65,726.55 and 20,117.10 is: 30,186.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,802.40 : 65,726.55 = 20,117.10 : x
  2. Step 2: Convert to fraction form
    43,802.40/65,726.55 = 20,117.10/x
  3. Step 3: Cross multiply
    43,802.40x = 65,726.55 × 20,117.10
  4. Step 4: Simplify right side
    43,802.40x = 1,322,227,579.01
  5. Step 5: Solve for x
    x = 1,322,227,579.01/43,802.40
  6. Step 6: Final answer
    x = 30,186.19

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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.