Home / 98,289.86-135,634.89-55,842.50

Finding the Fourth Proportional to 98,289.86, 135,634.89 and 55,842.50

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Solution

The fourth proportional to 98,289.86, 135,634.89 and 55,842.50 is: 77,059.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,289.86 : 135,634.89 = 55,842.50 : x
  2. Step 2: Convert to fraction form
    98,289.86/135,634.89 = 55,842.50/x
  3. Step 3: Cross multiply
    98,289.86x = 135,634.89 × 55,842.50
  4. Step 4: Simplify right side
    98,289.86x = 7,574,191,344.83
  5. Step 5: Solve for x
    x = 7,574,191,344.83/98,289.86
  6. Step 6: Final answer
    x = 77,059.74

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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.