Home / 55,397.64-83,089.14-15,419.28

Finding the Fourth Proportional to 55,397.64, 83,089.14 and 15,419.28

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Solution

The fourth proportional to 55,397.64, 83,089.14 and 15,419.28 is: 23,126.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,397.64 : 83,089.14 = 15,419.28 : x
  2. Step 2: Convert to fraction form
    55,397.64/83,089.14 = 15,419.28/x
  3. Step 3: Cross multiply
    55,397.64x = 83,089.14 × 15,419.28
  4. Step 4: Simplify right side
    55,397.64x = 1,281,174,714.62
  5. Step 5: Solve for x
    x = 1,281,174,714.62/55,397.64
  6. Step 6: Final answer
    x = 23,126.88

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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.