Home / 98,539.91-135,976.15-55,526.40

Finding the Fourth Proportional to 98,539.91, 135,976.15 and 55,526.40

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Solution

The fourth proportional to 98,539.91, 135,976.15 and 55,526.40 is: 76,621.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,539.91 : 135,976.15 = 55,526.40 : x
  2. Step 2: Convert to fraction form
    98,539.91/135,976.15 = 55,526.40/x
  3. Step 3: Cross multiply
    98,539.91x = 135,976.15 × 55,526.40
  4. Step 4: Simplify right side
    98,539.91x = 7,550,266,355.98
  5. Step 5: Solve for x
    x = 7,550,266,355.98/98,539.91
  6. Step 6: Final answer
    x = 76,621.41

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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.