Home / 98,641.39-136,091.79-56,169.85

Finding the Fourth Proportional to 98,641.39, 136,091.79 and 56,169.85

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Solution

The fourth proportional to 98,641.39, 136,091.79 and 56,169.85 is: 77,495.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,641.39 : 136,091.79 = 56,169.85 : x
  2. Step 2: Convert to fraction form
    98,641.39/136,091.79 = 56,169.85/x
  3. Step 3: Cross multiply
    98,641.39x = 136,091.79 × 56,169.85
  4. Step 4: Simplify right side
    98,641.39x = 7,644,255,430.53
  5. Step 5: Solve for x
    x = 7,644,255,430.53/98,641.39
  6. Step 6: Final answer
    x = 77,495.41

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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.