Home / 99,041.74-136,676.37-53,719

Finding the Fourth Proportional to 99,041.74, 136,676.37 and 53,719

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Solution

The fourth proportional to 99,041.74, 136,676.37 and 53,719 is: 74,131.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,041.74 : 136,676.37 = 53,719 : x
  2. Step 2: Convert to fraction form
    99,041.74/136,676.37 = 53,719/x
  3. Step 3: Cross multiply
    99,041.74x = 136,676.37 × 53,719
  4. Step 4: Simplify right side
    99,041.74x = 7,342,117,920.03
  5. Step 5: Solve for x
    x = 7,342,117,920.03/99,041.74
  6. Step 6: Final answer
    x = 74,131.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.