Home / 99,001.86-136,622.07-53,679.66

Finding the Fourth Proportional to 99,001.86, 136,622.07 and 53,679.66

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Solution

The fourth proportional to 99,001.86, 136,622.07 and 53,679.66 is: 74,077.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,001.86 : 136,622.07 = 53,679.66 : x
  2. Step 2: Convert to fraction form
    99,001.86/136,622.07 = 53,679.66/x
  3. Step 3: Cross multiply
    99,001.86x = 136,622.07 × 53,679.66
  4. Step 4: Simplify right side
    99,001.86x = 7,333,826,266.10
  5. Step 5: Solve for x
    x = 7,333,826,266.10/99,001.86
  6. Step 6: Final answer
    x = 74,077.66

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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.