Home / 98,041.09-135,291.77-55,603.57

Finding the Fourth Proportional to 98,041.09, 135,291.77 and 55,603.57

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Solution

The fourth proportional to 98,041.09, 135,291.77 and 55,603.57 is: 76,730.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,041.09 : 135,291.77 = 55,603.57 : x
  2. Step 2: Convert to fraction form
    98,041.09/135,291.77 = 55,603.57/x
  3. Step 3: Cross multiply
    98,041.09x = 135,291.77 × 55,603.57
  4. Step 4: Simplify right side
    98,041.09x = 7,522,705,125.60
  5. Step 5: Solve for x
    x = 7,522,705,125.60/98,041.09
  6. Step 6: Final answer
    x = 76,730.13

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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.