Home / 98,543.85-135,990.66-56,102.37

Finding the Fourth Proportional to 98,543.85, 135,990.66 and 56,102.37

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Solution

The fourth proportional to 98,543.85, 135,990.66 and 56,102.37 is: 77,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,543.85 : 135,990.66 = 56,102.37 : x
  2. Step 2: Convert to fraction form
    98,543.85/135,990.66 = 56,102.37/x
  3. Step 3: Cross multiply
    98,543.85x = 135,990.66 × 56,102.37
  4. Step 4: Simplify right side
    98,543.85x = 7,629,398,323.86
  5. Step 5: Solve for x
    x = 7,629,398,323.86/98,543.85
  6. Step 6: Final answer
    x = 77,421.35

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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.