Home / 98,845.79-136,404.23-55,827

Finding the Fourth Proportional to 98,845.79, 136,404.23 and 55,827

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Solution

The fourth proportional to 98,845.79, 136,404.23 and 55,827 is: 77,039.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,845.79 : 136,404.23 = 55,827 : x
  2. Step 2: Convert to fraction form
    98,845.79/136,404.23 = 55,827/x
  3. Step 3: Cross multiply
    98,845.79x = 136,404.23 × 55,827
  4. Step 4: Simplify right side
    98,845.79x = 7,615,038,669.08
  5. Step 5: Solve for x
    x = 7,615,038,669.08/98,845.79
  6. Step 6: Final answer
    x = 77,039.59

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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.